20202016

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 42336000

約数和(自身を除く): 22133984

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 149, 152, 223, 298, 304, 446, 596, 608, 892, 1192, 1784, 2384, 2831, 3568, 4237, 4768, 5662, 7136, 8474, 11324, 16948, 22648, 33227, 33896, 45296, 66454, 67792, 90592, 132908, 135584, 265816, 531632, 631313, 1063264, 1262626, 2525252, 5050504, 10101008, 20202016]

約数ペア:

[(1, 20202016), (2, 10101008), (4, 5050504), (8, 2525252), (16, 1262626), (19, 1063264), (32, 631313), (38, 531632), (76, 265816), (149, 135584), (152, 132908), (223, 90592), (298, 67792), (304, 66454), (446, 45296), (596, 33896), (608, 33227), (892, 22648), (1192, 16948), (1784, 11324), (2384, 8474), (2831, 7136), (3568, 5662), (4237, 4768)]