490601080

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{299147}}^1$

素因数の和:299199

約数の個数: 32

約数和(自身を含む): 1130779440

約数和(自身を除く): 640178360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 299147, 598294, 1196588, 1495735, 2393176, 2991470, 5982940, 11965880, 12265027, 24530054, 49060108, 61325135, 98120216, 122650270, 245300540, 490601080]

約数ペア:

[(1, 490601080), (2, 245300540), (4, 122650270), (5, 98120216), (8, 61325135), (10, 49060108), (20, 24530054), (40, 12265027), (41, 11965880), (82, 5982940), (164, 2991470), (205, 2393176), (328, 1495735), (410, 1196588), (820, 598294), (1640, 299147)]