81479408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2693}}^1$

素因数の和:2793

約数の個数: 40

約数和(自身を含む): 165691776

約数和(自身を除く): 84212368

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 2693, 3782, 5386, 7564, 10772, 15128, 21544, 30256, 43088, 83483, 164273, 166966, 328546, 333932, 657092, 667864, 1314184, 1335728, 2628368, 5092463, 10184926, 20369852, 40739704, 81479408]

約数ペア:

[(1, 81479408), (2, 40739704), (4, 20369852), (8, 10184926), (16, 5092463), (31, 2628368), (61, 1335728), (62, 1314184), (122, 667864), (124, 657092), (244, 333932), (248, 328546), (488, 166966), (496, 164273), (976, 83483), (1891, 43088), (2693, 30256), (3782, 21544), (5386, 15128), (7564, 10772)]