12920215

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 19874304

約数和(自身を除く): 6954089

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 907, 1295, 2035, 2849, 4535, 6349, 9977, 14245, 31745, 33559, 49885, 69839, 167795, 234913, 349195, 369149, 1174565, 1845745, 2584043, 12920215]

約数ペア:

[(1, 12920215), (5, 2584043), (7, 1845745), (11, 1174565), (35, 369149), (37, 349195), (55, 234913), (77, 167795), (185, 69839), (259, 49885), (385, 33559), (407, 31745), (907, 14245), (1295, 9977), (2035, 6349), (2849, 4535)]