129021880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248119}}^1$

素因数の和:248143

約数の個数: 32

約数和(自身を含む): 312631200

約数和(自身を除く): 183609320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 248119, 496238, 992476, 1240595, 1984952, 2481190, 3225547, 4962380, 6451094, 9924760, 12902188, 16127735, 25804376, 32255470, 64510940, 129021880]

約数ペア:

[(1, 129021880), (2, 64510940), (4, 32255470), (5, 25804376), (8, 16127735), (10, 12902188), (13, 9924760), (20, 6451094), (26, 4962380), (40, 3225547), (52, 2481190), (65, 1984952), (104, 1240595), (130, 992476), (260, 496238), (520, 248119)]