898491820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{11057}}^1$

素因数の和:11322

約数の個数: 48

約数和(自身を含む): 2006363520

約数和(自身を除く): 1107871700

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 2390, 4063, 4780, 8126, 11057, 16252, 20315, 22114, 40630, 44228, 55285, 81260, 110570, 187969, 221140, 375938, 751876, 939845, 1879690, 2642623, 3759380, 5285246, 10570492, 13213115, 26426230, 44924591, 52852460, 89849182, 179698364, 224622955, 449245910, 898491820]

約数ペア:

[(1, 898491820), (2, 449245910), (4, 224622955), (5, 179698364), (10, 89849182), (17, 52852460), (20, 44924591), (34, 26426230), (68, 13213115), (85, 10570492), (170, 5285246), (239, 3759380), (340, 2642623), (478, 1879690), (956, 939845), (1195, 751876), (2390, 375938), (4063, 221140), (4780, 187969), (8126, 110570), (11057, 81260), (16252, 55285), (20315, 44228), (22114, 40630)]