20144800

素因数分解:

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

素因数の和:195

約数の個数: 108

約数和(自身を含む): 53609850

約数和(自身を除く): 33465050

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 149, 160, 169, 200, 208, 260, 298, 325, 338, 400, 416, 520, 596, 650, 676, 745, 800, 845, 1040, 1192, 1300, 1352, 1490, 1690, 1937, 2080, 2384, 2600, 2704, 2980, 3380, 3725, 3874, 4225, 4768, 5200, 5408, 5960, 6760, 7450, 7748, 8450, 9685, 10400, 11920, 13520, 14900, 15496, 16900, 19370, 23840, 25181, 27040, 29800, 30992, 33800, 38740, 48425, 50362, 59600, 61984, 67600, 77480, 96850, 100724, 119200, 125905, 135200, 154960, 193700, 201448, 251810, 309920, 387400, 402896, 503620, 629525, 774800, 805792, 1007240, 1259050, 1549600, 2014480, 2518100, 4028960, 5036200, 10072400, 20144800]

約数ペア:

[(1, 20144800), (2, 10072400), (4, 5036200), (5, 4028960), (8, 2518100), (10, 2014480), (13, 1549600), (16, 1259050), (20, 1007240), (25, 805792), (26, 774800), (32, 629525), (40, 503620), (50, 402896), (52, 387400), (65, 309920), (80, 251810), (100, 201448), (104, 193700), (130, 154960), (149, 135200), (160, 125905), (169, 119200), (200, 100724), (208, 96850), (260, 77480), (298, 67600), (325, 61984), (338, 59600), (400, 50362), (416, 48425), (520, 38740), (596, 33800), (650, 30992), (676, 29800), (745, 27040), (800, 25181), (845, 23840), (1040, 19370), (1192, 16900), (1300, 15496), (1352, 14900), (1490, 13520), (1690, 11920), (1937, 10400), (2080, 9685), (2384, 8450), (2600, 7748), (2704, 7450), (2980, 6760), (3380, 5960), (3725, 5408), (3874, 5200), (4225, 4768)]