278662020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:379

約数の個数: 288

約数和(自身を含む): 1023176448

約数和(自身を除く): 744514428

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 23, 26, 28, 30, 35, 39, 42, 46, 49, 52, 60, 65, 69, 70, 78, 84, 91, 92, 98, 105, 115, 130, 138, 140, 147, 156, 161, 182, 195, 196, 210, 230, 245, 260, 273, 276, 294, 299, 317, 322, 345, 364, 390, 420, 455, 460, 483, 490, 546, 588, 598, 634, 637, 644, 690, 735, 780, 805, 897, 910, 951, 966, 980, 1092, 1127, 1196, 1268, 1274, 1365, 1380, 1470, 1495, 1585, 1610, 1794, 1820, 1902, 1911, 1932, 2093, 2219, 2254, 2415, 2548, 2730, 2940, 2990, 3170, 3185, 3220, 3381, 3588, 3804, 3822, 4121, 4186, 4438, 4485, 4508, 4755, 4830, 5460, 5635, 5980, 6279, 6340, 6370, 6657, 6762, 7291, 7644, 8242, 8372, 8876, 8970, 9510, 9555, 9660, 10465, 11095, 11270, 12363, 12558, 12740, 13314, 13524, 14582, 14651, 15533, 16484, 16905, 17940, 19020, 19110, 20605, 20930, 21873, 22190, 22540, 24726, 25116, 26628, 28847, 29164, 29302, 31066, 31395, 33285, 33810, 36455, 38220, 41210, 41860, 43746, 43953, 44380, 46599, 49452, 51037, 57694, 58604, 61815, 62132, 62790, 66570, 67620, 72910, 73255, 77665, 82420, 86541, 87492, 87906, 93198, 94783, 102074, 109365, 115388, 123630, 125580, 133140, 144235, 145820, 146510, 153111, 155330, 173082, 175812, 186396, 189566, 201929, 204148, 218730, 219765, 232995, 247260, 255185, 284349, 288470, 293020, 306222, 310660, 346164, 357259, 379132, 403858, 432705, 437460, 439530, 465990, 473915, 510370, 568698, 576940, 605787, 612444, 663481, 714518, 765555, 807716, 865410, 879060, 931980, 947830, 1009645, 1020740, 1071777, 1137396, 1211574, 1326962, 1421745, 1429036, 1531110, 1730820, 1786295, 1895660, 1990443, 2019290, 2143554, 2423148, 2653924, 2843490, 3028935, 3062220, 3317405, 3572590, 3980886, 4038580, 4287108, 4644367, 5358885, 5686980, 6057870, 6634810, 7145180, 7961772, 9288734, 9952215, 10717770, 12115740, 13269620, 13933101, 18577468, 19904430, 21435540, 23221835, 27866202, 39808860, 46443670, 55732404, 69665505, 92887340, 139331010, 278662020]

約数ペア:

[(1, 278662020), (2, 139331010), (3, 92887340), (4, 69665505), (5, 55732404), (6, 46443670), (7, 39808860), (10, 27866202), (12, 23221835), (13, 21435540), (14, 19904430), (15, 18577468), (20, 13933101), (21, 13269620), (23, 12115740), (26, 10717770), (28, 9952215), (30, 9288734), (35, 7961772), (39, 7145180), (42, 6634810), (46, 6057870), (49, 5686980), (52, 5358885), (60, 4644367), (65, 4287108), (69, 4038580), (70, 3980886), (78, 3572590), (84, 3317405), (91, 3062220), (92, 3028935), (98, 2843490), (105, 2653924), (115, 2423148), (130, 2143554), (138, 2019290), (140, 1990443), (147, 1895660), (156, 1786295), (161, 1730820), (182, 1531110), (195, 1429036), (196, 1421745), (210, 1326962), (230, 1211574), (245, 1137396), (260, 1071777), (273, 1020740), (276, 1009645), (294, 947830), (299, 931980), (317, 879060), (322, 865410), (345, 807716), (364, 765555), (390, 714518), (420, 663481), (455, 612444), (460, 605787), (483, 576940), (490, 568698), (546, 510370), (588, 473915), (598, 465990), (634, 439530), (637, 437460), (644, 432705), (690, 403858), (735, 379132), (780, 357259), (805, 346164), (897, 310660), (910, 306222), (951, 293020), (966, 288470), (980, 284349), (1092, 255185), (1127, 247260), (1196, 232995), (1268, 219765), (1274, 218730), (1365, 204148), (1380, 201929), (1470, 189566), (1495, 186396), (1585, 175812), (1610, 173082), (1794, 155330), (1820, 153111), (1902, 146510), (1911, 145820), (1932, 144235), (2093, 133140), (2219, 125580), (2254, 123630), (2415, 115388), (2548, 109365), (2730, 102074), (2940, 94783), (2990, 93198), (3170, 87906), (3185, 87492), (3220, 86541), (3381, 82420), (3588, 77665), (3804, 73255), (3822, 72910), (4121, 67620), (4186, 66570), (4438, 62790), (4485, 62132), (4508, 61815), (4755, 58604), (4830, 57694), (5460, 51037), (5635, 49452), (5980, 46599), (6279, 44380), (6340, 43953), (6370, 43746), (6657, 41860), (6762, 41210), (7291, 38220), (7644, 36455), (8242, 33810), (8372, 33285), (8876, 31395), (8970, 31066), (9510, 29302), (9555, 29164), (9660, 28847), (10465, 26628), (11095, 25116), (11270, 24726), (12363, 22540), (12558, 22190), (12740, 21873), (13314, 20930), (13524, 20605), (14582, 19110), (14651, 19020), (15533, 17940), (16484, 16905)]