18683875

素因数分解:

$5^3\times 7^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1$

素因数の和:316

約数の個数: 32

約数和(自身を含む): 27016704

約数和(自身を除く): 8332829

約数列:

[1, 5, 7, 25, 35, 125, 131, 163, 175, 655, 815, 875, 917, 1141, 3275, 4075, 4585, 5705, 16375, 20375, 21353, 22925, 28525, 106765, 114625, 142625, 149471, 533825, 747355, 2669125, 3736775, 18683875]

約数ペア:

[(1, 18683875), (5, 3736775), (7, 2669125), (25, 747355), (35, 533825), (125, 149471), (131, 142625), (163, 114625), (175, 106765), (655, 28525), (815, 22925), (875, 21353), (917, 20375), (1141, 16375), (3275, 5705), (4075, 4585)]