215512115

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{1523}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 319527936

約数和(自身を除く): 104015821

約数列:

[1, 5, 7, 13, 35, 65, 91, 311, 455, 1523, 1555, 2177, 4043, 7615, 10661, 10885, 19799, 20215, 28301, 53305, 98995, 138593, 141505, 473653, 692965, 2368265, 3315571, 6157489, 16577855, 30787445, 43102423, 215512115]

約数ペア:

[(1, 215512115), (5, 43102423), (7, 30787445), (13, 16577855), (35, 6157489), (65, 3315571), (91, 2368265), (311, 692965), (455, 473653), (1523, 141505), (1555, 138593), (2177, 98995), (4043, 53305), (7615, 28301), (10661, 20215), (10885, 19799)]