8550980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:276

約数の個数: 48

約数和(自身を含む): 18790464

約数和(自身を除く): 10239484

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 163, 172, 215, 244, 305, 326, 430, 610, 652, 815, 860, 1220, 1630, 2623, 3260, 5246, 7009, 9943, 10492, 13115, 14018, 19886, 26230, 28036, 35045, 39772, 49715, 52460, 70090, 99430, 140180, 198860, 427549, 855098, 1710196, 2137745, 4275490, 8550980]

約数ペア:

[(1, 8550980), (2, 4275490), (4, 2137745), (5, 1710196), (10, 855098), (20, 427549), (43, 198860), (61, 140180), (86, 99430), (122, 70090), (163, 52460), (172, 49715), (215, 39772), (244, 35045), (305, 28036), (326, 26230), (430, 19886), (610, 14018), (652, 13115), (815, 10492), (860, 9943), (1220, 7009), (1630, 5246), (2623, 3260)]