402645625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{827}}^1$

素因数の和:907

約数の個数: 40

約数和(自身を含む): 543201120

約数和(自身を除く): 140555495

約数列:

[1, 5, 19, 25, 41, 95, 125, 205, 475, 625, 779, 827, 1025, 2375, 3895, 4135, 5125, 11875, 15713, 19475, 20675, 25625, 33907, 78565, 97375, 103375, 169535, 392825, 486875, 516875, 644233, 847675, 1964125, 3221165, 4238375, 9820625, 16105825, 21191875, 80529125, 402645625]

約数ペア:

[(1, 402645625), (5, 80529125), (19, 21191875), (25, 16105825), (41, 9820625), (95, 4238375), (125, 3221165), (205, 1964125), (475, 847675), (625, 644233), (779, 516875), (827, 486875), (1025, 392825), (2375, 169535), (3895, 103375), (4135, 97375), (5125, 78565), (11875, 33907), (15713, 25625), (19475, 20675)]