280628040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{251}}^1$

素因数の和:305

約数の個数: 256

約数和(自身を含む): 1062512640

約数和(自身を除く): 781884600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 55, 56, 60, 66, 70, 77, 84, 88, 105, 110, 120, 121, 132, 140, 154, 165, 168, 210, 220, 231, 242, 251, 264, 280, 308, 330, 363, 385, 420, 440, 462, 484, 502, 605, 616, 660, 726, 753, 770, 840, 847, 924, 968, 1004, 1155, 1210, 1255, 1320, 1331, 1452, 1506, 1540, 1694, 1757, 1815, 1848, 2008, 2310, 2420, 2510, 2541, 2662, 2761, 2904, 3012, 3080, 3388, 3514, 3630, 3765, 3993, 4235, 4620, 4840, 5020, 5082, 5271, 5324, 5522, 6024, 6655, 6776, 7028, 7260, 7530, 7986, 8283, 8470, 8785, 9240, 9317, 10040, 10164, 10542, 10648, 11044, 12705, 13310, 13805, 14056, 14520, 15060, 15972, 16566, 16940, 17570, 18634, 19327, 19965, 20328, 21084, 22088, 25410, 26355, 26620, 27610, 27951, 30120, 30371, 31944, 33132, 33880, 35140, 37268, 38654, 39930, 41415, 42168, 46585, 50820, 52710, 53240, 55220, 55902, 57981, 60742, 66264, 70280, 74536, 77308, 79860, 82830, 91113, 93170, 96635, 101640, 105420, 110440, 111804, 115962, 121484, 139755, 151855, 154616, 159720, 165660, 182226, 186340, 193270, 210840, 212597, 223608, 231924, 242968, 279510, 289905, 303710, 331320, 334081, 364452, 372680, 386540, 425194, 455565, 463848, 559020, 579810, 607420, 637791, 668162, 728904, 773080, 850388, 911130, 1002243, 1062985, 1118040, 1159620, 1214840, 1275582, 1336324, 1670405, 1700776, 1822260, 2004486, 2125970, 2319240, 2338567, 2551164, 2672648, 3188955, 3340810, 3644520, 4008972, 4251940, 4677134, 5011215, 5102328, 6377910, 6681620, 7015701, 8017944, 8503880, 9354268, 10022430, 11692835, 12755820, 13363240, 14031402, 18708536, 20044860, 23385670, 25511640, 28062804, 35078505, 40089720, 46771340, 56125608, 70157010, 93542680, 140314020, 280628040]

約数ペア:

[(1, 280628040), (2, 140314020), (3, 93542680), (4, 70157010), (5, 56125608), (6, 46771340), (7, 40089720), (8, 35078505), (10, 28062804), (11, 25511640), (12, 23385670), (14, 20044860), (15, 18708536), (20, 14031402), (21, 13363240), (22, 12755820), (24, 11692835), (28, 10022430), (30, 9354268), (33, 8503880), (35, 8017944), (40, 7015701), (42, 6681620), (44, 6377910), (55, 5102328), (56, 5011215), (60, 4677134), (66, 4251940), (70, 4008972), (77, 3644520), (84, 3340810), (88, 3188955), (105, 2672648), (110, 2551164), (120, 2338567), (121, 2319240), (132, 2125970), (140, 2004486), (154, 1822260), (165, 1700776), (168, 1670405), (210, 1336324), (220, 1275582), (231, 1214840), (242, 1159620), (251, 1118040), (264, 1062985), (280, 1002243), (308, 911130), (330, 850388), (363, 773080), (385, 728904), (420, 668162), (440, 637791), (462, 607420), (484, 579810), (502, 559020), (605, 463848), (616, 455565), (660, 425194), (726, 386540), (753, 372680), (770, 364452), (840, 334081), (847, 331320), (924, 303710), (968, 289905), (1004, 279510), (1155, 242968), (1210, 231924), (1255, 223608), (1320, 212597), (1331, 210840), (1452, 193270), (1506, 186340), (1540, 182226), (1694, 165660), (1757, 159720), (1815, 154616), (1848, 151855), (2008, 139755), (2310, 121484), (2420, 115962), (2510, 111804), (2541, 110440), (2662, 105420), (2761, 101640), (2904, 96635), (3012, 93170), (3080, 91113), (3388, 82830), (3514, 79860), (3630, 77308), (3765, 74536), (3993, 70280), (4235, 66264), (4620, 60742), (4840, 57981), (5020, 55902), (5082, 55220), (5271, 53240), (5324, 52710), (5522, 50820), (6024, 46585), (6655, 42168), (6776, 41415), (7028, 39930), (7260, 38654), (7530, 37268), (7986, 35140), (8283, 33880), (8470, 33132), (8785, 31944), (9240, 30371), (9317, 30120), (10040, 27951), (10164, 27610), (10542, 26620), (10648, 26355), (11044, 25410), (12705, 22088), (13310, 21084), (13805, 20328), (14056, 19965), (14520, 19327), (15060, 18634), (15972, 17570), (16566, 16940)]