221440440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:318

約数の個数: 256

約数和(自身を含む): 780595200

約数和(自身を除く): 559154760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 31, 38, 39, 40, 52, 57, 60, 62, 65, 76, 78, 93, 95, 104, 114, 120, 124, 130, 152, 155, 156, 186, 190, 195, 228, 241, 247, 248, 260, 285, 310, 312, 372, 380, 390, 403, 456, 465, 482, 494, 520, 570, 589, 620, 723, 741, 744, 760, 780, 806, 930, 964, 988, 1140, 1178, 1205, 1209, 1235, 1240, 1446, 1482, 1560, 1612, 1767, 1860, 1928, 1976, 2015, 2280, 2356, 2410, 2418, 2470, 2892, 2945, 2964, 3133, 3224, 3534, 3615, 3705, 3720, 4030, 4579, 4712, 4820, 4836, 4940, 5784, 5890, 5928, 6045, 6266, 7068, 7230, 7410, 7471, 7657, 8060, 8835, 9158, 9399, 9640, 9672, 9880, 11780, 12090, 12532, 13737, 14136, 14460, 14820, 14942, 15314, 15665, 16120, 17670, 18316, 18798, 22413, 22895, 22971, 23560, 24180, 25064, 27474, 28920, 29640, 29884, 30628, 31330, 35340, 36632, 37355, 37596, 38285, 44826, 45790, 45942, 46995, 48360, 54948, 59527, 59768, 61256, 62660, 68685, 70680, 74710, 75192, 76570, 89652, 91580, 91884, 93990, 97123, 109896, 112065, 114855, 119054, 125320, 137370, 141949, 149420, 153140, 178581, 179304, 183160, 183768, 187980, 194246, 224130, 229710, 238108, 274740, 283898, 291369, 297635, 298840, 306280, 357162, 375960, 388492, 425847, 448260, 459420, 476216, 485615, 549480, 567796, 582738, 595270, 709745, 714324, 776984, 851694, 892905, 896520, 918840, 971230, 1135592, 1165476, 1190540, 1419490, 1428648, 1456845, 1703388, 1785810, 1845337, 1942460, 2129235, 2330952, 2381080, 2838980, 2913690, 3406776, 3571620, 3690674, 3884920, 4258470, 5536011, 5677960, 5827380, 7143240, 7381348, 8516940, 9226685, 11072022, 11654760, 14762696, 17033880, 18453370, 22144044, 27680055, 36906740, 44288088, 55360110, 73813480, 110720220, 221440440]

約数ペア:

[(1, 221440440), (2, 110720220), (3, 73813480), (4, 55360110), (5, 44288088), (6, 36906740), (8, 27680055), (10, 22144044), (12, 18453370), (13, 17033880), (15, 14762696), (19, 11654760), (20, 11072022), (24, 9226685), (26, 8516940), (30, 7381348), (31, 7143240), (38, 5827380), (39, 5677960), (40, 5536011), (52, 4258470), (57, 3884920), (60, 3690674), (62, 3571620), (65, 3406776), (76, 2913690), (78, 2838980), (93, 2381080), (95, 2330952), (104, 2129235), (114, 1942460), (120, 1845337), (124, 1785810), (130, 1703388), (152, 1456845), (155, 1428648), (156, 1419490), (186, 1190540), (190, 1165476), (195, 1135592), (228, 971230), (241, 918840), (247, 896520), (248, 892905), (260, 851694), (285, 776984), (310, 714324), (312, 709745), (372, 595270), (380, 582738), (390, 567796), (403, 549480), (456, 485615), (465, 476216), (482, 459420), (494, 448260), (520, 425847), (570, 388492), (589, 375960), (620, 357162), (723, 306280), (741, 298840), (744, 297635), (760, 291369), (780, 283898), (806, 274740), (930, 238108), (964, 229710), (988, 224130), (1140, 194246), (1178, 187980), (1205, 183768), (1209, 183160), (1235, 179304), (1240, 178581), (1446, 153140), (1482, 149420), (1560, 141949), (1612, 137370), (1767, 125320), (1860, 119054), (1928, 114855), (1976, 112065), (2015, 109896), (2280, 97123), (2356, 93990), (2410, 91884), (2418, 91580), (2470, 89652), (2892, 76570), (2945, 75192), (2964, 74710), (3133, 70680), (3224, 68685), (3534, 62660), (3615, 61256), (3705, 59768), (3720, 59527), (4030, 54948), (4579, 48360), (4712, 46995), (4820, 45942), (4836, 45790), (4940, 44826), (5784, 38285), (5890, 37596), (5928, 37355), (6045, 36632), (6266, 35340), (7068, 31330), (7230, 30628), (7410, 29884), (7471, 29640), (7657, 28920), (8060, 27474), (8835, 25064), (9158, 24180), (9399, 23560), (9640, 22971), (9672, 22895), (9880, 22413), (11780, 18798), (12090, 18316), (12532, 17670), (13737, 16120), (14136, 15665), (14460, 15314), (14820, 14942)]