8661320

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{971}}^1$

素因数の和:1205

約数の個数: 32

約数和(自身を含む): 19595520

約数和(自身を除く): 10934200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 971, 1115, 1784, 1942, 2230, 3884, 4460, 4855, 7768, 8920, 9710, 19420, 38840, 216533, 433066, 866132, 1082665, 1732264, 2165330, 4330660, 8661320]

約数ペア:

[(1, 8661320), (2, 4330660), (4, 2165330), (5, 1732264), (8, 1082665), (10, 866132), (20, 433066), (40, 216533), (223, 38840), (446, 19420), (892, 9710), (971, 8920), (1115, 7768), (1784, 4855), (1942, 4460), (2230, 3884)]