10980580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{269}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 25084080

約数和(自身を除く): 14103500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 269, 314, 538, 628, 785, 1076, 1345, 1570, 2041, 2690, 3140, 3497, 4082, 5380, 6994, 8164, 10205, 13988, 17485, 20410, 34970, 40820, 42233, 69940, 84466, 168932, 211165, 422330, 549029, 844660, 1098058, 2196116, 2745145, 5490290, 10980580]

約数ペア:

[(1, 10980580), (2, 5490290), (4, 2745145), (5, 2196116), (10, 1098058), (13, 844660), (20, 549029), (26, 422330), (52, 211165), (65, 168932), (130, 84466), (157, 69940), (260, 42233), (269, 40820), (314, 34970), (538, 20410), (628, 17485), (785, 13988), (1076, 10205), (1345, 8164), (1570, 6994), (2041, 5380), (2690, 4082), (3140, 3497)]