220100660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{19687}}^1$

素因数の和:19752

約数の個数: 48

約数和(自身を含む): 509367936

約数和(自身を除く): 289267276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 19687, 39374, 78748, 98435, 196870, 255931, 393740, 511862, 846541, 1023724, 1279655, 1693082, 2559310, 3386164, 4232705, 5118620, 8465410, 11005033, 16930820, 22010066, 44020132, 55025165, 110050330, 220100660]

約数ペア:

[(1, 220100660), (2, 110050330), (4, 55025165), (5, 44020132), (10, 22010066), (13, 16930820), (20, 11005033), (26, 8465410), (43, 5118620), (52, 4232705), (65, 3386164), (86, 2559310), (130, 1693082), (172, 1279655), (215, 1023724), (260, 846541), (430, 511862), (559, 393740), (860, 255931), (1118, 196870), (2236, 98435), (2795, 78748), (5590, 39374), (11180, 19687)]