56991320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8741}}^1$

素因数の和:8915

約数の個数: 32

約数和(自身を含む): 129031920

約数和(自身を除く): 72040600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 8741, 17482, 34964, 43705, 69928, 87410, 174820, 349640, 1424783, 2849566, 5699132, 7123915, 11398264, 14247830, 28495660, 56991320]

約数ペア:

[(1, 56991320), (2, 28495660), (4, 14247830), (5, 11398264), (8, 7123915), (10, 5699132), (20, 2849566), (40, 1424783), (163, 349640), (326, 174820), (652, 87410), (815, 69928), (1304, 43705), (1630, 34964), (3260, 17482), (6520, 8741)]