81735280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{317}}^1$

素因数の和:634

約数の個数: 80

約数和(自身を含む): 208674144

約数和(自身を除く): 126938864

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 293, 317, 440, 586, 634, 880, 1172, 1268, 1465, 1585, 2344, 2536, 2930, 3170, 3223, 3487, 4688, 5072, 5860, 6340, 6446, 6974, 11720, 12680, 12892, 13948, 16115, 17435, 23440, 25360, 25784, 27896, 32230, 34870, 51568, 55792, 64460, 69740, 92881, 128920, 139480, 185762, 257840, 278960, 371524, 464405, 743048, 928810, 1021691, 1486096, 1857620, 2043382, 3715240, 4086764, 5108455, 7430480, 8173528, 10216910, 16347056, 20433820, 40867640, 81735280]

約数ペア:

[(1, 81735280), (2, 40867640), (4, 20433820), (5, 16347056), (8, 10216910), (10, 8173528), (11, 7430480), (16, 5108455), (20, 4086764), (22, 3715240), (40, 2043382), (44, 1857620), (55, 1486096), (80, 1021691), (88, 928810), (110, 743048), (176, 464405), (220, 371524), (293, 278960), (317, 257840), (440, 185762), (586, 139480), (634, 128920), (880, 92881), (1172, 69740), (1268, 64460), (1465, 55792), (1585, 51568), (2344, 34870), (2536, 32230), (2930, 27896), (3170, 25784), (3223, 25360), (3487, 23440), (4688, 17435), (5072, 16115), (5860, 13948), (6340, 12892), (6446, 12680), (6974, 11720)]