25211420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{7459}}^1$

素因数の和:7494

約数の個数: 36

約数和(自身を含む): 57337560

約数和(自身を除く): 32126140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 7459, 14918, 29836, 37295, 74590, 96967, 149180, 193934, 387868, 484835, 969670, 1260571, 1939340, 2521142, 5042284, 6302855, 12605710, 25211420]

約数ペア:

[(1, 25211420), (2, 12605710), (4, 6302855), (5, 5042284), (10, 2521142), (13, 1939340), (20, 1260571), (26, 969670), (52, 484835), (65, 387868), (130, 193934), (169, 149180), (260, 96967), (338, 74590), (676, 37295), (845, 29836), (1690, 14918), (3380, 7459)]