81913904

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:969

約数の個数: 40

約数和(自身を含む): 164751360

約数和(自身を除く): 82837456

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 239, 248, 478, 496, 691, 956, 1382, 1912, 2764, 3824, 5528, 7409, 11056, 14818, 21421, 29636, 42842, 59272, 85684, 118544, 165149, 171368, 330298, 342736, 660596, 1321192, 2642384, 5119619, 10239238, 20478476, 40956952, 81913904]

約数ペア:

[(1, 81913904), (2, 40956952), (4, 20478476), (8, 10239238), (16, 5119619), (31, 2642384), (62, 1321192), (124, 660596), (239, 342736), (248, 330298), (478, 171368), (496, 165149), (691, 118544), (956, 85684), (1382, 59272), (1912, 42842), (2764, 29636), (3824, 21421), (5528, 14818), (7409, 11056)]