90017780

素因数分解:

$2^2\times 5^1\times {\mathrm{601}}^1\times {\mathrm{7489}}^1$

素因数の和:8099

約数の個数: 24

約数和(自身を含む): 189377160

約数和(自身を除く): 99359380

約数列:

[1, 2, 4, 5, 10, 20, 601, 1202, 2404, 3005, 6010, 7489, 12020, 14978, 29956, 37445, 74890, 149780, 4500889, 9001778, 18003556, 22504445, 45008890, 90017780]

約数ペア:

[(1, 90017780), (2, 45008890), (4, 22504445), (5, 18003556), (10, 9001778), (20, 4500889), (601, 149780), (1202, 74890), (2404, 37445), (3005, 29956), (6010, 14978), (7489, 12020)]