1279884020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1\times {\mathrm{2503}}^1$

素因数の和:3240

約数の個数: 48

約数和(自身を含む): 2765497728

約数和(自身を除く): 1485613708

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 691, 740, 1382, 2503, 2764, 3455, 5006, 6910, 10012, 12515, 13820, 25030, 25567, 50060, 51134, 92611, 102268, 127835, 185222, 255670, 370444, 463055, 511340, 926110, 1729573, 1852220, 3459146, 6918292, 8647865, 17295730, 34591460, 63994201, 127988402, 255976804, 319971005, 639942010, 1279884020]

約数ペア:

[(1, 1279884020), (2, 639942010), (4, 319971005), (5, 255976804), (10, 127988402), (20, 63994201), (37, 34591460), (74, 17295730), (148, 8647865), (185, 6918292), (370, 3459146), (691, 1852220), (740, 1729573), (1382, 926110), (2503, 511340), (2764, 463055), (3455, 370444), (5006, 255670), (6910, 185222), (10012, 127835), (12515, 102268), (13820, 92611), (25030, 51134), (25567, 50060)]