28581405

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 47443968

約数和(自身を除く): 18862563

約数列:

[1, 3, 5, 15, 47, 71, 141, 213, 235, 355, 571, 705, 1065, 1713, 2855, 3337, 8565, 10011, 16685, 26837, 40541, 50055, 80511, 121623, 134185, 202705, 402555, 608115, 1905427, 5716281, 9527135, 28581405]

約数ペア:

[(1, 28581405), (3, 9527135), (5, 5716281), (15, 1905427), (47, 608115), (71, 402555), (141, 202705), (213, 134185), (235, 121623), (355, 80511), (571, 50055), (705, 40541), (1065, 26837), (1713, 16685), (2855, 10011), (3337, 8565)]