89673860

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:644

約数の個数: 48

約数和(自身を含む): 192471552

約数和(自身を除く): 102797692

約数列:

[1, 2, 4, 5, 10, 20, 101, 103, 202, 206, 404, 412, 431, 505, 515, 862, 1010, 1030, 1724, 2020, 2060, 2155, 4310, 8620, 10403, 20806, 41612, 43531, 44393, 52015, 87062, 88786, 104030, 174124, 177572, 208060, 217655, 221965, 435310, 443930, 870620, 887860, 4483693, 8967386, 17934772, 22418465, 44836930, 89673860]

約数ペア:

[(1, 89673860), (2, 44836930), (4, 22418465), (5, 17934772), (10, 8967386), (20, 4483693), (101, 887860), (103, 870620), (202, 443930), (206, 435310), (404, 221965), (412, 217655), (431, 208060), (505, 177572), (515, 174124), (862, 104030), (1010, 88786), (1030, 87062), (1724, 52015), (2020, 44393), (2060, 43531), (2155, 41612), (4310, 20806), (8620, 10403)]