87390620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:690

約数の個数: 48

約数和(自身を含む): 188969088

約数和(自身を除く): 101578468

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 307, 331, 430, 614, 662, 860, 1228, 1324, 1535, 1655, 3070, 3310, 6140, 6620, 13201, 14233, 26402, 28466, 52804, 56932, 66005, 71165, 101617, 132010, 142330, 203234, 264020, 284660, 406468, 508085, 1016170, 2032340, 4369531, 8739062, 17478124, 21847655, 43695310, 87390620]

約数ペア:

[(1, 87390620), (2, 43695310), (4, 21847655), (5, 17478124), (10, 8739062), (20, 4369531), (43, 2032340), (86, 1016170), (172, 508085), (215, 406468), (307, 284660), (331, 264020), (430, 203234), (614, 142330), (662, 132010), (860, 101617), (1228, 71165), (1324, 66005), (1535, 56932), (1655, 52804), (3070, 28466), (3310, 26402), (6140, 14233), (6620, 13201)]