20579000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1583}}^1$

素因数の和:1617

約数の個数: 64

約数和(自身を含む): 51891840

約数和(自身を除く): 31312840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1583, 1625, 2600, 3166, 3250, 6332, 6500, 7915, 12664, 13000, 15830, 20579, 31660, 39575, 41158, 63320, 79150, 82316, 102895, 158300, 164632, 197875, 205790, 316600, 395750, 411580, 514475, 791500, 823160, 1028950, 1583000, 2057900, 2572375, 4115800, 5144750, 10289500, 20579000]

約数ペア:

[(1, 20579000), (2, 10289500), (4, 5144750), (5, 4115800), (8, 2572375), (10, 2057900), (13, 1583000), (20, 1028950), (25, 823160), (26, 791500), (40, 514475), (50, 411580), (52, 395750), (65, 316600), (100, 205790), (104, 197875), (125, 164632), (130, 158300), (200, 102895), (250, 82316), (260, 79150), (325, 63320), (500, 41158), (520, 39575), (650, 31660), (1000, 20579), (1300, 15830), (1583, 13000), (1625, 12664), (2600, 7915), (3166, 6500), (3250, 6332)]