64395500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{9907}}^1$

素因数の和:9939

約数の個数: 48

約数和(自身を含む): 151473504

約数和(自身を除く): 87078004

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250, 6500, 9907, 19814, 39628, 49535, 99070, 128791, 198140, 247675, 257582, 495350, 515164, 643955, 990700, 1238375, 1287910, 2476750, 2575820, 3219775, 4953500, 6439550, 12879100, 16098875, 32197750, 64395500]

約数ペア:

[(1, 64395500), (2, 32197750), (4, 16098875), (5, 12879100), (10, 6439550), (13, 4953500), (20, 3219775), (25, 2575820), (26, 2476750), (50, 1287910), (52, 1238375), (65, 990700), (100, 643955), (125, 515164), (130, 495350), (250, 257582), (260, 247675), (325, 198140), (500, 128791), (650, 99070), (1300, 49535), (1625, 39628), (3250, 19814), (6500, 9907)]