2840890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^2$

素因数の和:115

約数の個数: 36

約数和(自身を含む): 5675562

約数和(自身を除く): 2834672

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 169, 205, 338, 410, 533, 845, 1066, 1681, 1690, 2665, 3362, 5330, 6929, 8405, 13858, 16810, 21853, 34645, 43706, 69290, 109265, 218530, 284089, 568178, 1420445, 2840890]

約数ペア:

[(1, 2840890), (2, 1420445), (5, 568178), (10, 284089), (13, 218530), (26, 109265), (41, 69290), (65, 43706), (82, 34645), (130, 21853), (169, 16810), (205, 13858), (338, 8405), (410, 6929), (533, 5330), (845, 3362), (1066, 2665), (1681, 1690)]