42820180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1049}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 97549200

約数和(自身を除く): 54729020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 314, 628, 785, 1049, 1570, 2041, 2098, 3140, 4082, 4196, 5245, 8164, 10205, 10490, 13637, 20410, 20980, 27274, 40820, 54548, 68185, 136370, 164693, 272740, 329386, 658772, 823465, 1646930, 2141009, 3293860, 4282018, 8564036, 10705045, 21410090, 42820180]

約数ペア:

[(1, 42820180), (2, 21410090), (4, 10705045), (5, 8564036), (10, 4282018), (13, 3293860), (20, 2141009), (26, 1646930), (52, 823465), (65, 658772), (130, 329386), (157, 272740), (260, 164693), (314, 136370), (628, 68185), (785, 54548), (1049, 40820), (1570, 27274), (2041, 20980), (2098, 20410), (3140, 13637), (4082, 10490), (4196, 10205), (5245, 8164)]