8129480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4957}}^1$

素因数の和:5009

約数の個数: 32

約数和(自身を含む): 18741240

約数和(自身を除く): 10611760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4957, 9914, 19828, 24785, 39656, 49570, 99140, 198280, 203237, 406474, 812948, 1016185, 1625896, 2032370, 4064740, 8129480]

約数ペア:

[(1, 8129480), (2, 4064740), (4, 2032370), (5, 1625896), (8, 1016185), (10, 812948), (20, 406474), (40, 203237), (41, 198280), (82, 99140), (164, 49570), (205, 39656), (328, 24785), (410, 19828), (820, 9914), (1640, 4957)]