28469740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8423}}^1$

素因数の和:8458

約数の個数: 36

約数和(自身を含む): 64746864

約数和(自身を除く): 36277124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8423, 16846, 33692, 42115, 84230, 109499, 168460, 218998, 437996, 547495, 1094990, 1423487, 2189980, 2846974, 5693948, 7117435, 14234870, 28469740]

約数ペア:

[(1, 28469740), (2, 14234870), (4, 7117435), (5, 5693948), (10, 2846974), (13, 2189980), (20, 1423487), (26, 1094990), (52, 547495), (65, 437996), (130, 218998), (169, 168460), (260, 109499), (338, 84230), (676, 42115), (845, 33692), (1690, 16846), (3380, 8423)]