20253555

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{569}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 40547520

約数和(自身を除く): 20293965

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 113, 315, 339, 565, 569, 791, 1017, 1695, 1707, 2373, 2845, 3955, 3983, 5085, 5121, 7119, 8535, 11865, 11949, 19915, 25605, 35595, 35847, 59745, 64297, 179235, 192891, 321485, 450079, 578673, 964455, 1350237, 2250395, 2893365, 4050711, 6751185, 20253555]

約数ペア:

[(1, 20253555), (3, 6751185), (5, 4050711), (7, 2893365), (9, 2250395), (15, 1350237), (21, 964455), (35, 578673), (45, 450079), (63, 321485), (105, 192891), (113, 179235), (315, 64297), (339, 59745), (565, 35847), (569, 35595), (791, 25605), (1017, 19915), (1695, 11949), (1707, 11865), (2373, 8535), (2845, 7119), (3955, 5121), (3983, 5085)]