661003280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{22271}}^1$

素因数の和:22344

約数の個数: 80

約数和(自身を含む): 1789599744

約数和(自身を除く): 1128596464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 53, 56, 70, 80, 106, 112, 140, 212, 265, 280, 371, 424, 530, 560, 742, 848, 1060, 1484, 1855, 2120, 2968, 3710, 4240, 5936, 7420, 14840, 22271, 29680, 44542, 89084, 111355, 155897, 178168, 222710, 311794, 356336, 445420, 623588, 779485, 890840, 1180363, 1247176, 1558970, 1781680, 2360726, 2494352, 3117940, 4721452, 5901815, 6235880, 8262541, 9442904, 11803630, 12471760, 16525082, 18885808, 23607260, 33050164, 41312705, 47214520, 66100328, 82625410, 94429040, 132200656, 165250820, 330501640, 661003280]

約数ペア:

[(1, 661003280), (2, 330501640), (4, 165250820), (5, 132200656), (7, 94429040), (8, 82625410), (10, 66100328), (14, 47214520), (16, 41312705), (20, 33050164), (28, 23607260), (35, 18885808), (40, 16525082), (53, 12471760), (56, 11803630), (70, 9442904), (80, 8262541), (106, 6235880), (112, 5901815), (140, 4721452), (212, 3117940), (265, 2494352), (280, 2360726), (371, 1781680), (424, 1558970), (530, 1247176), (560, 1180363), (742, 890840), (848, 779485), (1060, 623588), (1484, 445420), (1855, 356336), (2120, 311794), (2968, 222710), (3710, 178168), (4240, 155897), (5936, 111355), (7420, 89084), (14840, 44542), (22271, 29680)]