20237750

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{479}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 41109120

約数和(自身を除く): 20871370

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 479, 650, 845, 958, 1625, 1690, 2395, 3250, 4225, 4790, 6227, 8450, 11975, 12454, 21125, 23950, 31135, 42250, 59875, 62270, 80951, 119750, 155675, 161902, 311350, 404755, 778375, 809510, 1556750, 2023775, 4047550, 10118875, 20237750]

約数ペア:

[(1, 20237750), (2, 10118875), (5, 4047550), (10, 2023775), (13, 1556750), (25, 809510), (26, 778375), (50, 404755), (65, 311350), (125, 161902), (130, 155675), (169, 119750), (250, 80951), (325, 62270), (338, 59875), (479, 42250), (650, 31135), (845, 23950), (958, 21125), (1625, 12454), (1690, 11975), (2395, 8450), (3250, 6227), (4225, 4790)]