90046640

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{12647}}^1$

素因数の和:12749

約数の個数: 40

約数和(自身を含む): 211727520

約数和(自身を除く): 121680880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 3560, 7120, 12647, 25294, 50588, 63235, 101176, 126470, 202352, 252940, 505880, 1011760, 1125583, 2251166, 4502332, 5627915, 9004664, 11255830, 18009328, 22511660, 45023320, 90046640]

約数ペア:

[(1, 90046640), (2, 45023320), (4, 22511660), (5, 18009328), (8, 11255830), (10, 9004664), (16, 5627915), (20, 4502332), (40, 2251166), (80, 1125583), (89, 1011760), (178, 505880), (356, 252940), (445, 202352), (712, 126470), (890, 101176), (1424, 63235), (1780, 50588), (3560, 25294), (7120, 12647)]