20168044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 40572000

約数和(自身を除く): 20403956

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 137, 149, 247, 274, 298, 494, 548, 596, 988, 1781, 1937, 2603, 2831, 3562, 3874, 5206, 5662, 7124, 7748, 10412, 11324, 20413, 33839, 36803, 40826, 67678, 73606, 81652, 135356, 147212, 265369, 387847, 530738, 775694, 1061476, 1551388, 5042011, 10084022, 20168044]

約数ペア:

[(1, 20168044), (2, 10084022), (4, 5042011), (13, 1551388), (19, 1061476), (26, 775694), (38, 530738), (52, 387847), (76, 265369), (137, 147212), (149, 135356), (247, 81652), (274, 73606), (298, 67678), (494, 40826), (548, 36803), (596, 33839), (988, 20413), (1781, 11324), (1937, 10412), (2603, 7748), (2831, 7124), (3562, 5662), (3874, 5206)]