1029128900

素因数分解:

$2^2\times 5^2\times {\mathrm{809}}^1\times {\mathrm{12721}}^1$

素因数の和:13544

約数の個数: 36

約数和(自身を含む): 2236145940

約数和(自身を除く): 1207017040

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 809, 1618, 3236, 4045, 8090, 12721, 16180, 20225, 25442, 40450, 50884, 63605, 80900, 127210, 254420, 318025, 636050, 1272100, 10291289, 20582578, 41165156, 51456445, 102912890, 205825780, 257282225, 514564450, 1029128900]

約数ペア:

[(1, 1029128900), (2, 514564450), (4, 257282225), (5, 205825780), (10, 102912890), (20, 51456445), (25, 41165156), (50, 20582578), (100, 10291289), (809, 1272100), (1618, 636050), (3236, 318025), (4045, 254420), (8090, 127210), (12721, 80900), (16180, 63605), (20225, 50884), (25442, 40450)]