90903320

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{8641}}^1$

素因数の和:8915

約数の個数: 32

約数和(自身を含む): 205333920

約数和(自身を除く): 114430600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 8641, 10520, 17282, 34564, 43205, 69128, 86410, 172820, 345640, 2272583, 4545166, 9090332, 11362915, 18180664, 22725830, 45451660, 90903320]

約数ペア:

[(1, 90903320), (2, 45451660), (4, 22725830), (5, 18180664), (8, 11362915), (10, 9090332), (20, 4545166), (40, 2272583), (263, 345640), (526, 172820), (1052, 86410), (1315, 69128), (2104, 43205), (2630, 34564), (5260, 17282), (8641, 10520)]