12171380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{277}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 27788880

約数和(自身を除く): 15617500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 277, 338, 554, 676, 845, 1108, 1385, 1690, 2197, 2770, 3380, 3601, 4394, 5540, 7202, 8788, 10985, 14404, 18005, 21970, 36010, 43940, 46813, 72020, 93626, 187252, 234065, 468130, 608569, 936260, 1217138, 2434276, 3042845, 6085690, 12171380]

約数ペア:

[(1, 12171380), (2, 6085690), (4, 3042845), (5, 2434276), (10, 1217138), (13, 936260), (20, 608569), (26, 468130), (52, 234065), (65, 187252), (130, 93626), (169, 72020), (260, 46813), (277, 43940), (338, 36010), (554, 21970), (676, 18005), (845, 14404), (1108, 10985), (1385, 8788), (1690, 7202), (2197, 5540), (2770, 4394), (3380, 3601)]