2156781480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{11311}}^1$

素因数の和:11559

約数の個数: 128

約数和(自身を含む): 7427911680

約数和(自身を除く): 5271130200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 227, 280, 420, 454, 681, 840, 908, 1135, 1362, 1589, 1816, 2270, 2724, 3178, 3405, 4540, 4767, 5448, 6356, 6810, 7945, 9080, 9534, 11311, 12712, 13620, 15890, 19068, 22622, 23835, 27240, 31780, 33933, 38136, 45244, 47670, 56555, 63560, 67866, 79177, 90488, 95340, 113110, 135732, 158354, 169665, 190680, 226220, 237531, 271464, 316708, 339330, 395885, 452440, 475062, 633416, 678660, 791770, 950124, 1187655, 1357320, 1583540, 1900248, 2375310, 2567597, 3167080, 4750620, 5135194, 7702791, 9501240, 10270388, 12837985, 15405582, 17973179, 20540776, 25675970, 30811164, 35946358, 38513955, 51351940, 53919537, 61622328, 71892716, 77027910, 89865895, 102703880, 107839074, 143785432, 154055820, 179731790, 215678148, 269597685, 308111640, 359463580, 431356296, 539195370, 718927160, 1078390740, 2156781480]

約数ペア:

[(1, 2156781480), (2, 1078390740), (3, 718927160), (4, 539195370), (5, 431356296), (6, 359463580), (7, 308111640), (8, 269597685), (10, 215678148), (12, 179731790), (14, 154055820), (15, 143785432), (20, 107839074), (21, 102703880), (24, 89865895), (28, 77027910), (30, 71892716), (35, 61622328), (40, 53919537), (42, 51351940), (56, 38513955), (60, 35946358), (70, 30811164), (84, 25675970), (105, 20540776), (120, 17973179), (140, 15405582), (168, 12837985), (210, 10270388), (227, 9501240), (280, 7702791), (420, 5135194), (454, 4750620), (681, 3167080), (840, 2567597), (908, 2375310), (1135, 1900248), (1362, 1583540), (1589, 1357320), (1816, 1187655), (2270, 950124), (2724, 791770), (3178, 678660), (3405, 633416), (4540, 475062), (4767, 452440), (5448, 395885), (6356, 339330), (6810, 316708), (7945, 271464), (9080, 237531), (9534, 226220), (11311, 190680), (12712, 169665), (13620, 158354), (15890, 135732), (19068, 113110), (22622, 95340), (23835, 90488), (27240, 79177), (31780, 67866), (33933, 63560), (38136, 56555), (45244, 47670)]