80637720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{671981}}^1$

素因数の和:671995

約数の個数: 32

約数和(自身を含む): 241913520

約数和(自身を除く): 161275800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 671981, 1343962, 2015943, 2687924, 3359905, 4031886, 5375848, 6719810, 8063772, 10079715, 13439620, 16127544, 20159430, 26879240, 40318860, 80637720]

約数ペア:

[(1, 80637720), (2, 40318860), (3, 26879240), (4, 20159430), (5, 16127544), (6, 13439620), (8, 10079715), (10, 8063772), (12, 6719810), (15, 5375848), (20, 4031886), (24, 3359905), (30, 2687924), (40, 2015943), (60, 1343962), (120, 671981)]