129295220

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{19531}}^1$

素因数の和:19871

約数の個数: 24

約数和(自身を含む): 272354208

約数和(自身を除く): 143058988

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 6620, 19531, 39062, 78124, 97655, 195310, 390620, 6464761, 12929522, 25859044, 32323805, 64647610, 129295220]

約数ペア:

[(1, 129295220), (2, 64647610), (4, 32323805), (5, 25859044), (10, 12929522), (20, 6464761), (331, 390620), (662, 195310), (1324, 97655), (1655, 78124), (3310, 39062), (6620, 19531)]