68808940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 149796864

約数和(自身を除く): 80987924

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 470, 710, 940, 1031, 1420, 2062, 3337, 4124, 5155, 6674, 10310, 13348, 16685, 20620, 33370, 48457, 66740, 73201, 96914, 146402, 193828, 242285, 292804, 366005, 484570, 732010, 969140, 1464020, 3440447, 6880894, 13761788, 17202235, 34404470, 68808940]

約数ペア:

[(1, 68808940), (2, 34404470), (4, 17202235), (5, 13761788), (10, 6880894), (20, 3440447), (47, 1464020), (71, 969140), (94, 732010), (142, 484570), (188, 366005), (235, 292804), (284, 242285), (355, 193828), (470, 146402), (710, 96914), (940, 73201), (1031, 66740), (1420, 48457), (2062, 33370), (3337, 20620), (4124, 16685), (5155, 13348), (6674, 10310)]