90228880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{161123}}^1$

素因数の和:161143

約数の個数: 40

約数和(自身を含む): 239752512

約数和(自身を除く): 149523632

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 161123, 322246, 644492, 805615, 1127861, 1288984, 1611230, 2255722, 2577968, 3222460, 4511444, 5639305, 6444920, 9022888, 11278610, 12889840, 18045776, 22557220, 45114440, 90228880]

約数ペア:

[(1, 90228880), (2, 45114440), (4, 22557220), (5, 18045776), (7, 12889840), (8, 11278610), (10, 9022888), (14, 6444920), (16, 5639305), (20, 4511444), (28, 3222460), (35, 2577968), (40, 2255722), (56, 1611230), (70, 1288984), (80, 1127861), (112, 805615), (140, 644492), (280, 322246), (560, 161123)]