40565840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{677}}^1$

素因数の和:804

約数の個数: 80

約数和(自身を含む): 108957312

約数和(自身を除く): 68391472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 107, 112, 140, 214, 280, 428, 535, 560, 677, 749, 856, 1070, 1354, 1498, 1712, 2140, 2708, 2996, 3385, 3745, 4280, 4739, 5416, 5992, 6770, 7490, 8560, 9478, 10832, 11984, 13540, 14980, 18956, 23695, 27080, 29960, 37912, 47390, 54160, 59920, 72439, 75824, 94780, 144878, 189560, 289756, 362195, 379120, 507073, 579512, 724390, 1014146, 1159024, 1448780, 2028292, 2535365, 2897560, 4056584, 5070730, 5795120, 8113168, 10141460, 20282920, 40565840]

約数ペア:

[(1, 40565840), (2, 20282920), (4, 10141460), (5, 8113168), (7, 5795120), (8, 5070730), (10, 4056584), (14, 2897560), (16, 2535365), (20, 2028292), (28, 1448780), (35, 1159024), (40, 1014146), (56, 724390), (70, 579512), (80, 507073), (107, 379120), (112, 362195), (140, 289756), (214, 189560), (280, 144878), (428, 94780), (535, 75824), (560, 72439), (677, 59920), (749, 54160), (856, 47390), (1070, 37912), (1354, 29960), (1498, 27080), (1712, 23695), (2140, 18956), (2708, 14980), (2996, 13540), (3385, 11984), (3745, 10832), (4280, 9478), (4739, 8560), (5416, 7490), (5992, 6770)]