31706920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2311}}^1$

素因数の和:2343

約数の個数: 64

約数和(自身を含む): 83232000

約数和(自身を除く): 51525080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2311, 2744, 3430, 4622, 6860, 9244, 11555, 13720, 16177, 18488, 23110, 32354, 46220, 64708, 80885, 92440, 113239, 129416, 161770, 226478, 323540, 452956, 566195, 647080, 792673, 905912, 1132390, 1585346, 2264780, 3170692, 3963365, 4529560, 6341384, 7926730, 15853460, 31706920]

約数ペア:

[(1, 31706920), (2, 15853460), (4, 7926730), (5, 6341384), (7, 4529560), (8, 3963365), (10, 3170692), (14, 2264780), (20, 1585346), (28, 1132390), (35, 905912), (40, 792673), (49, 647080), (56, 566195), (70, 452956), (98, 323540), (140, 226478), (196, 161770), (245, 129416), (280, 113239), (343, 92440), (392, 80885), (490, 64708), (686, 46220), (980, 32354), (1372, 23110), (1715, 18488), (1960, 16177), (2311, 13720), (2744, 11555), (3430, 9244), (4622, 6860)]