65871380

素因数分解:

$2^2\times 5^1\times {\mathrm{1471}}^1\times {\mathrm{2239}}^1$

素因数の和:3719

約数の個数: 24

約数和(自身を含む): 138485760

約数和(自身を除く): 72614380

約数列:

[1, 2, 4, 5, 10, 20, 1471, 2239, 2942, 4478, 5884, 7355, 8956, 11195, 14710, 22390, 29420, 44780, 3293569, 6587138, 13174276, 16467845, 32935690, 65871380]

約数ペア:

[(1, 65871380), (2, 32935690), (4, 16467845), (5, 13174276), (10, 6587138), (20, 3293569), (1471, 44780), (2239, 29420), (2942, 22390), (4478, 14710), (5884, 11195), (7355, 8956)]