218814040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{34843}}^1$

素因数の和:35011

約数の個数: 32

約数和(自身を含む): 495481680

約数和(自身を除く): 276667640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 34843, 69686, 139372, 174215, 278744, 348430, 696860, 1393720, 5470351, 10940702, 21881404, 27351755, 43762808, 54703510, 109407020, 218814040]

約数ペア:

[(1, 218814040), (2, 109407020), (4, 54703510), (5, 43762808), (8, 27351755), (10, 21881404), (20, 10940702), (40, 5470351), (157, 1393720), (314, 696860), (628, 348430), (785, 278744), (1256, 174215), (1570, 139372), (3140, 69686), (6280, 34843)]