12921740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{3823}}^1$

素因数の和:3858

約数の個数: 36

約数和(自身を含む): 29391264

約数和(自身を除く): 16469524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 3823, 7646, 15292, 19115, 38230, 49699, 76460, 99398, 198796, 248495, 496990, 646087, 993980, 1292174, 2584348, 3230435, 6460870, 12921740]

約数ペア:

[(1, 12921740), (2, 6460870), (4, 3230435), (5, 2584348), (10, 1292174), (13, 993980), (20, 646087), (26, 496990), (52, 248495), (65, 198796), (130, 99398), (169, 76460), (260, 49699), (338, 38230), (676, 19115), (845, 15292), (1690, 7646), (3380, 3823)]