278797145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{3613}}^1$

素因数の和:3713

約数の個数: 32

約数和(自身を含む): 387189504

約数和(自身を除く): 108392359

約数列:

[1, 5, 11, 23, 55, 61, 115, 253, 305, 671, 1265, 1403, 3355, 3613, 7015, 15433, 18065, 39743, 77165, 83099, 198715, 220393, 415495, 914089, 1101965, 2424323, 4570445, 5069039, 12121615, 25345195, 55759429, 278797145]

約数ペア:

[(1, 278797145), (5, 55759429), (11, 25345195), (23, 12121615), (55, 5069039), (61, 4570445), (115, 2424323), (253, 1101965), (305, 914089), (671, 415495), (1265, 220393), (1403, 198715), (3355, 83099), (3613, 77165), (7015, 39743), (15433, 18065)]