1561942040

素因数分解:

$2^3\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{31721}}^1$

素因数の和:32963

約数の個数: 32

約数和(自身を含む): 3517335360

約数和(自身を除く): 1955393320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1231, 2462, 4924, 6155, 9848, 12310, 24620, 31721, 49240, 63442, 126884, 158605, 253768, 317210, 634420, 1268840, 39048551, 78097102, 156194204, 195242755, 312388408, 390485510, 780971020, 1561942040]

約数ペア:

[(1, 1561942040), (2, 780971020), (4, 390485510), (5, 312388408), (8, 195242755), (10, 156194204), (20, 78097102), (40, 39048551), (1231, 1268840), (2462, 634420), (4924, 317210), (6155, 253768), (9848, 158605), (12310, 126884), (24620, 63442), (31721, 49240)]