280931380

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{5347}}^1$

素因数の和:5464

約数の個数: 48

約数和(自身を含む): 614549376

約数和(自身を除く): 333617996

約数列:

[1, 2, 4, 5, 10, 20, 37, 71, 74, 142, 148, 185, 284, 355, 370, 710, 740, 1420, 2627, 5254, 5347, 10508, 10694, 13135, 21388, 26270, 26735, 52540, 53470, 106940, 197839, 379637, 395678, 759274, 791356, 989195, 1518548, 1898185, 1978390, 3796370, 3956780, 7592740, 14046569, 28093138, 56186276, 70232845, 140465690, 280931380]

約数ペア:

[(1, 280931380), (2, 140465690), (4, 70232845), (5, 56186276), (10, 28093138), (20, 14046569), (37, 7592740), (71, 3956780), (74, 3796370), (142, 1978390), (148, 1898185), (185, 1518548), (284, 989195), (355, 791356), (370, 759274), (710, 395678), (740, 379637), (1420, 197839), (2627, 106940), (5254, 53470), (5347, 52540), (10508, 26735), (10694, 26270), (13135, 21388)]