4380440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2671}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 10100160

約数和(自身を除く): 5719720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 2671, 5342, 10684, 13355, 21368, 26710, 53420, 106840, 109511, 219022, 438044, 547555, 876088, 1095110, 2190220, 4380440]

約数ペア:

[(1, 4380440), (2, 2190220), (4, 1095110), (5, 876088), (8, 547555), (10, 438044), (20, 219022), (40, 109511), (41, 106840), (82, 53420), (164, 26710), (205, 21368), (328, 13355), (410, 10684), (820, 5342), (1640, 2671)]