2831107960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 6706022400

約数和(自身を除く): 3874914440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 97, 142, 172, 194, 215, 239, 284, 344, 355, 388, 430, 478, 485, 568, 710, 776, 860, 956, 970, 1195, 1420, 1720, 1912, 1940, 2390, 2840, 3053, 3880, 4171, 4780, 6106, 6887, 8342, 9560, 10277, 12212, 13774, 15265, 16684, 16969, 20554, 20855, 23183, 24424, 27548, 30530, 33368, 33938, 34435, 41108, 41710, 46366, 51385, 55096, 61060, 67876, 68870, 82216, 83420, 84845, 92732, 102770, 115915, 122120, 135752, 137740, 166840, 169690, 185464, 205540, 231830, 275480, 296141, 339380, 411080, 463660, 592282, 678760, 729667, 927320, 996869, 1184564, 1459334, 1480705, 1645993, 1993738, 2369128, 2918668, 2961410, 3291986, 3648335, 3987476, 4984345, 5837336, 5922820, 6583972, 7296670, 7974952, 8229965, 9968690, 11845640, 13167944, 14593340, 16459930, 19937380, 29186680, 32919860, 39874760, 65839720, 70777699, 141555398, 283110796, 353888495, 566221592, 707776990, 1415553980, 2831107960]

約数ペア:

[(1, 2831107960), (2, 1415553980), (4, 707776990), (5, 566221592), (8, 353888495), (10, 283110796), (20, 141555398), (40, 70777699), (43, 65839720), (71, 39874760), (86, 32919860), (97, 29186680), (142, 19937380), (172, 16459930), (194, 14593340), (215, 13167944), (239, 11845640), (284, 9968690), (344, 8229965), (355, 7974952), (388, 7296670), (430, 6583972), (478, 5922820), (485, 5837336), (568, 4984345), (710, 3987476), (776, 3648335), (860, 3291986), (956, 2961410), (970, 2918668), (1195, 2369128), (1420, 1993738), (1720, 1645993), (1912, 1480705), (1940, 1459334), (2390, 1184564), (2840, 996869), (3053, 927320), (3880, 729667), (4171, 678760), (4780, 592282), (6106, 463660), (6887, 411080), (8342, 339380), (9560, 296141), (10277, 275480), (12212, 231830), (13774, 205540), (15265, 185464), (16684, 169690), (16969, 166840), (20554, 137740), (20855, 135752), (23183, 122120), (24424, 115915), (27548, 102770), (30530, 92732), (33368, 84845), (33938, 83420), (34435, 82216), (41108, 68870), (41710, 67876), (46366, 61060), (51385, 55096)]