31511116

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:263

約数の個数: 72

約数和(自身を含む): 70383600

約数和(自身を除く): 38872484

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 83, 91, 98, 149, 166, 182, 196, 298, 332, 364, 581, 596, 637, 1043, 1079, 1162, 1274, 1937, 2086, 2158, 2324, 2548, 3874, 4067, 4172, 4316, 7301, 7553, 7748, 8134, 12367, 13559, 14602, 15106, 16268, 24734, 27118, 29204, 30212, 49468, 52871, 54236, 86569, 94913, 105742, 160771, 173138, 189826, 211484, 321542, 346276, 379652, 605983, 643084, 1125397, 1211966, 2250794, 2423932, 4501588, 7877779, 15755558, 31511116]

約数ペア:

[(1, 31511116), (2, 15755558), (4, 7877779), (7, 4501588), (13, 2423932), (14, 2250794), (26, 1211966), (28, 1125397), (49, 643084), (52, 605983), (83, 379652), (91, 346276), (98, 321542), (149, 211484), (166, 189826), (182, 173138), (196, 160771), (298, 105742), (332, 94913), (364, 86569), (581, 54236), (596, 52871), (637, 49468), (1043, 30212), (1079, 29204), (1162, 27118), (1274, 24734), (1937, 16268), (2086, 15106), (2158, 14602), (2324, 13559), (2548, 12367), (3874, 8134), (4067, 7748), (4172, 7553), (4316, 7301)]