2078104080400

素因数分解:

$2^4\times 5^2\times {\mathrm{2081}}^1\times {\mathrm{2496521}}^1$

素因数の和:2498620

約数の個数: 60

約数和(自身を含む): 4995046210644

約数和(自身を除く): 2916942130244

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2081, 4162, 8324, 10405, 16648, 20810, 33296, 41620, 52025, 83240, 104050, 166480, 208100, 416200, 832400, 2496521, 4993042, 9986084, 12482605, 19972168, 24965210, 39944336, 49930420, 62413025, 99860840, 124826050, 199721680, 249652100, 499304200, 998608400, 5195260201, 10390520402, 20781040804, 25976301005, 41562081608, 51952602010, 83124163216, 103905204020, 129881505025, 207810408040, 259763010050, 415620816080, 519526020100, 1039052040200, 2078104080400]

約数ペア:

[(1, 2078104080400), (2, 1039052040200), (4, 519526020100), (5, 415620816080), (8, 259763010050), (10, 207810408040), (16, 129881505025), (20, 103905204020), (25, 83124163216), (40, 51952602010), (50, 41562081608), (80, 25976301005), (100, 20781040804), (200, 10390520402), (400, 5195260201), (2081, 998608400), (4162, 499304200), (8324, 249652100), (10405, 199721680), (16648, 124826050), (20810, 99860840), (33296, 62413025), (41620, 49930420), (52025, 39944336), (83240, 24965210), (104050, 19972168), (166480, 12482605), (208100, 9986084), (416200, 4993042), (832400, 2496521)]