221497160

素因数分解:

$2^3\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{3433}}^1$

素因数の和:5057

約数の個数: 32

約数和(自身を含む): 498822840

約数和(自身を除く): 277325680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1613, 3226, 3433, 6452, 6866, 8065, 12904, 13732, 16130, 17165, 27464, 32260, 34330, 64520, 68660, 137320, 5537429, 11074858, 22149716, 27687145, 44299432, 55374290, 110748580, 221497160]

約数ペア:

[(1, 221497160), (2, 110748580), (4, 55374290), (5, 44299432), (8, 27687145), (10, 22149716), (20, 11074858), (40, 5537429), (1613, 137320), (3226, 68660), (3433, 64520), (6452, 34330), (6866, 32260), (8065, 27464), (12904, 17165), (13732, 16130)]