668829200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{128621}}^1$

素因数の和:128652

約数の個数: 60

約数和(自身を含む): 1730480388

約数和(自身を除く): 1061651188

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 128621, 257242, 514484, 643105, 1028968, 1286210, 1672073, 2057936, 2572420, 3215525, 3344146, 5144840, 6431050, 6688292, 8360365, 10289680, 12862100, 13376584, 16720730, 25724200, 26753168, 33441460, 41801825, 51448400, 66882920, 83603650, 133765840, 167207300, 334414600, 668829200]

約数ペア:

[(1, 668829200), (2, 334414600), (4, 167207300), (5, 133765840), (8, 83603650), (10, 66882920), (13, 51448400), (16, 41801825), (20, 33441460), (25, 26753168), (26, 25724200), (40, 16720730), (50, 13376584), (52, 12862100), (65, 10289680), (80, 8360365), (100, 6688292), (104, 6431050), (130, 5144840), (200, 3344146), (208, 3215525), (260, 2572420), (325, 2057936), (400, 1672073), (520, 1286210), (650, 1028968), (1040, 643105), (1300, 514484), (2600, 257242), (5200, 128621)]