16979960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{6959}}^1$

素因数の和:7031

約数の個数: 32

約数和(自身を含む): 38836800

約数和(自身を除く): 21856840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 6959, 13918, 27836, 34795, 55672, 69590, 139180, 278360, 424499, 848998, 1697996, 2122495, 3395992, 4244990, 8489980, 16979960]

約数ペア:

[(1, 16979960), (2, 8489980), (4, 4244990), (5, 3395992), (8, 2122495), (10, 1697996), (20, 848998), (40, 424499), (61, 278360), (122, 139180), (244, 69590), (305, 55672), (488, 34795), (610, 27836), (1220, 13918), (2440, 6959)]