13121360

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23431}}^1$

素因数の和:23451

約数の個数: 40

約数和(自身を含む): 34866816

約数和(自身を除く): 21745456

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 23431, 46862, 93724, 117155, 164017, 187448, 234310, 328034, 374896, 468620, 656068, 820085, 937240, 1312136, 1640170, 1874480, 2624272, 3280340, 6560680, 13121360]

約数ペア:

[(1, 13121360), (2, 6560680), (4, 3280340), (5, 2624272), (7, 1874480), (8, 1640170), (10, 1312136), (14, 937240), (16, 820085), (20, 656068), (28, 468620), (35, 374896), (40, 328034), (56, 234310), (70, 187448), (80, 164017), (112, 117155), (140, 93724), (280, 46862), (560, 23431)]