20516600

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^2\times {\mathrm{607}}^1$

素因数の和:649

約数の個数: 72

約数和(自身を含む): 51737760

約数和(自身を除く): 31221160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 169, 200, 260, 325, 338, 520, 607, 650, 676, 845, 1214, 1300, 1352, 1690, 2428, 2600, 3035, 3380, 4225, 4856, 6070, 6760, 7891, 8450, 12140, 15175, 15782, 16900, 24280, 30350, 31564, 33800, 39455, 60700, 63128, 78910, 102583, 121400, 157820, 197275, 205166, 315640, 394550, 410332, 512915, 789100, 820664, 1025830, 1578200, 2051660, 2564575, 4103320, 5129150, 10258300, 20516600]

約数ペア:

[(1, 20516600), (2, 10258300), (4, 5129150), (5, 4103320), (8, 2564575), (10, 2051660), (13, 1578200), (20, 1025830), (25, 820664), (26, 789100), (40, 512915), (50, 410332), (52, 394550), (65, 315640), (100, 205166), (104, 197275), (130, 157820), (169, 121400), (200, 102583), (260, 78910), (325, 63128), (338, 60700), (520, 39455), (607, 33800), (650, 31564), (676, 30350), (845, 24280), (1214, 16900), (1300, 15782), (1352, 15175), (1690, 12140), (2428, 8450), (2600, 7891), (3035, 6760), (3380, 6070), (4225, 4856)]