71978615

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{1609}}^1$

素因数の和:2026

約数の個数: 16

約数和(自身を含む): 90417600

約数和(自身を除く): 18438985

約数列:

[1, 5, 23, 115, 389, 1609, 1945, 8045, 8947, 37007, 44735, 185035, 625901, 3129505, 14395723, 71978615]

約数ペア:

[(1, 71978615), (5, 14395723), (23, 3129505), (115, 625901), (389, 185035), (1609, 44735), (1945, 37007), (8045, 8947)]