81981856

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:746

約数の個数: 72

約数和(自身を含む): 183399552

約数和(自身を除く): 101417696

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 176, 242, 248, 341, 352, 484, 496, 682, 683, 968, 992, 1364, 1366, 1936, 2728, 2732, 3751, 3872, 5456, 5464, 7502, 7513, 10912, 10928, 15004, 15026, 21173, 21856, 30008, 30052, 42346, 60016, 60104, 82643, 84692, 120032, 120208, 165286, 169384, 232903, 240416, 330572, 338768, 465806, 661144, 677536, 931612, 1322288, 1863224, 2561933, 2644576, 3726448, 5123866, 7452896, 10247732, 20495464, 40990928, 81981856]

約数ペア:

[(1, 81981856), (2, 40990928), (4, 20495464), (8, 10247732), (11, 7452896), (16, 5123866), (22, 3726448), (31, 2644576), (32, 2561933), (44, 1863224), (62, 1322288), (88, 931612), (121, 677536), (124, 661144), (176, 465806), (242, 338768), (248, 330572), (341, 240416), (352, 232903), (484, 169384), (496, 165286), (682, 120208), (683, 120032), (968, 84692), (992, 82643), (1364, 60104), (1366, 60016), (1936, 42346), (2728, 30052), (2732, 30008), (3751, 21856), (3872, 21173), (5456, 15026), (5464, 15004), (7502, 10928), (7513, 10912)]