64671405

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 105598080

約数和(自身を除く): 40926675

約数列:

[1, 3, 5, 15, 89, 193, 251, 267, 445, 579, 753, 965, 1255, 1335, 2895, 3765, 17177, 22339, 48443, 51531, 67017, 85885, 111695, 145329, 242215, 257655, 335085, 726645, 4311427, 12934281, 21557135, 64671405]

約数ペア:

[(1, 64671405), (3, 21557135), (5, 12934281), (15, 4311427), (89, 726645), (193, 335085), (251, 257655), (267, 242215), (445, 145329), (579, 111695), (753, 85885), (965, 67017), (1255, 51531), (1335, 48443), (2895, 22339), (3765, 17177)]