18668440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1093}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 48836160

約数和(自身を除く): 30167720

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, 1093, 1220, 1708, 2135, 2186, 2440, 3416, 4270, 4372, 5465, 7651, 8540, 8744, 10930, 15302, 17080, 21860, 30604, 38255, 43720, 61208, 66673, 76510, 133346, 153020, 266692, 306040, 333365, 466711, 533384, 666730, 933422, 1333460, 1866844, 2333555, 2666920, 3733688, 4667110, 9334220, 18668440]

約数ペア:

[(1, 18668440), (2, 9334220), (4, 4667110), (5, 3733688), (7, 2666920), (8, 2333555), (10, 1866844), (14, 1333460), (20, 933422), (28, 666730), (35, 533384), (40, 466711), (56, 333365), (61, 306040), (70, 266692), (122, 153020), (140, 133346), (244, 76510), (280, 66673), (305, 61208), (427, 43720), (488, 38255), (610, 30604), (854, 21860), (1093, 17080), (1220, 15302), (1708, 10930), (2135, 8744), (2186, 8540), (2440, 7651), (3416, 5465), (4270, 4372)]