220212440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12893}}^1$

素因数の和:12972

約数の個数: 64

約数和(自身を含む): 575588160

約数和(自身を除く): 355375720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 61, 70, 122, 140, 244, 280, 305, 427, 488, 610, 854, 1220, 1708, 2135, 2440, 3416, 4270, 8540, 12893, 17080, 25786, 51572, 64465, 90251, 103144, 128930, 180502, 257860, 361004, 451255, 515720, 722008, 786473, 902510, 1572946, 1805020, 3145892, 3610040, 3932365, 5505311, 6291784, 7864730, 11010622, 15729460, 22021244, 27526555, 31458920, 44042488, 55053110, 110106220, 220212440]

約数ペア:

[(1, 220212440), (2, 110106220), (4, 55053110), (5, 44042488), (7, 31458920), (8, 27526555), (10, 22021244), (14, 15729460), (20, 11010622), (28, 7864730), (35, 6291784), (40, 5505311), (56, 3932365), (61, 3610040), (70, 3145892), (122, 1805020), (140, 1572946), (244, 902510), (280, 786473), (305, 722008), (427, 515720), (488, 451255), (610, 361004), (854, 257860), (1220, 180502), (1708, 128930), (2135, 103144), (2440, 90251), (3416, 64465), (4270, 51572), (8540, 25786), (12893, 17080)]