65552440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{39971}}^1$

素因数の和:40023

約数の個数: 32

約数和(自身を含む): 151094160

約数和(自身を除く): 85541720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 39971, 79942, 159884, 199855, 319768, 399710, 799420, 1598840, 1638811, 3277622, 6555244, 8194055, 13110488, 16388110, 32776220, 65552440]

約数ペア:

[(1, 65552440), (2, 32776220), (4, 16388110), (5, 13110488), (8, 8194055), (10, 6555244), (20, 3277622), (40, 1638811), (41, 1598840), (82, 799420), (164, 399710), (205, 319768), (328, 199855), (410, 159884), (820, 79942), (1640, 39971)]