8212880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{149}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 21092400

約数和(自身を除く): 12879520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 53, 65, 80, 104, 106, 130, 149, 208, 212, 260, 265, 298, 424, 520, 530, 596, 689, 745, 848, 1040, 1060, 1192, 1378, 1490, 1937, 2120, 2384, 2756, 2980, 3445, 3874, 4240, 5512, 5960, 6890, 7748, 7897, 9685, 11024, 11920, 13780, 15496, 15794, 19370, 27560, 30992, 31588, 38740, 39485, 55120, 63176, 77480, 78970, 102661, 126352, 154960, 157940, 205322, 315880, 410644, 513305, 631760, 821288, 1026610, 1642576, 2053220, 4106440, 8212880]

約数ペア:

[(1, 8212880), (2, 4106440), (4, 2053220), (5, 1642576), (8, 1026610), (10, 821288), (13, 631760), (16, 513305), (20, 410644), (26, 315880), (40, 205322), (52, 157940), (53, 154960), (65, 126352), (80, 102661), (104, 78970), (106, 77480), (130, 63176), (149, 55120), (208, 39485), (212, 38740), (260, 31588), (265, 30992), (298, 27560), (424, 19370), (520, 15794), (530, 15496), (596, 13780), (689, 11920), (745, 11024), (848, 9685), (1040, 7897), (1060, 7748), (1192, 6890), (1378, 5960), (1490, 5512), (1937, 4240), (2120, 3874), (2384, 3445), (2756, 2980)]