724387625

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{1999}}^1$

素因数の和:2250

約数の個数: 32

約数和(自身を含む): 978432000

約数和(自身を除く): 254044375

約数列:

[1, 5, 13, 25, 65, 125, 223, 325, 1115, 1625, 1999, 2899, 5575, 9995, 14495, 25987, 27875, 49975, 72475, 129935, 249875, 362375, 445777, 649675, 2228885, 3248375, 5795101, 11144425, 28975505, 55722125, 144877525, 724387625]

約数ペア:

[(1, 724387625), (5, 144877525), (13, 55722125), (25, 28975505), (65, 11144425), (125, 5795101), (223, 3248375), (325, 2228885), (1115, 649675), (1625, 445777), (1999, 362375), (2899, 249875), (5575, 129935), (9995, 72475), (14495, 49975), (25987, 27875)]