20804368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3449}}^1$

素因数の和:3499

約数の個数: 40

約数和(自身を含む): 44919000

約数和(自身を除く): 24114632

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3449, 6032, 6898, 13796, 27592, 44837, 55184, 89674, 100021, 179348, 200042, 358696, 400084, 717392, 800168, 1300273, 1600336, 2600546, 5201092, 10402184, 20804368]

約数ペア:

[(1, 20804368), (2, 10402184), (4, 5201092), (8, 2600546), (13, 1600336), (16, 1300273), (26, 800168), (29, 717392), (52, 400084), (58, 358696), (104, 200042), (116, 179348), (208, 100021), (232, 89674), (377, 55184), (464, 44837), (754, 27592), (1508, 13796), (3016, 6898), (3449, 6032)]