80707980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17027}}^1$

素因数の和:17118

約数の個数: 48

約数和(自身を含む): 228856320

約数和(自身を除く): 148148340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 17027, 34054, 51081, 68108, 85135, 102162, 170270, 204324, 255405, 340540, 510810, 1021620, 1345133, 2690266, 4035399, 5380532, 6725665, 8070798, 13451330, 16141596, 20176995, 26902660, 40353990, 80707980]

約数ペア:

[(1, 80707980), (2, 40353990), (3, 26902660), (4, 20176995), (5, 16141596), (6, 13451330), (10, 8070798), (12, 6725665), (15, 5380532), (20, 4035399), (30, 2690266), (60, 1345133), (79, 1021620), (158, 510810), (237, 340540), (316, 255405), (395, 204324), (474, 170270), (790, 102162), (948, 85135), (1185, 68108), (1580, 51081), (2370, 34054), (4740, 17027)]