80040370

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{647}}^1$

素因数の和:882

約数の個数: 32

約数和(自身を含む): 146966400

約数和(自身を除く): 66926030

約数列:

[1, 2, 5, 10, 89, 139, 178, 278, 445, 647, 695, 890, 1294, 1390, 3235, 6470, 12371, 24742, 57583, 61855, 89933, 115166, 123710, 179866, 287915, 449665, 575830, 899330, 8004037, 16008074, 40020185, 80040370]

約数ペア:

[(1, 80040370), (2, 40020185), (5, 16008074), (10, 8004037), (89, 899330), (139, 575830), (178, 449665), (278, 287915), (445, 179866), (647, 123710), (695, 115166), (890, 89933), (1294, 61855), (1390, 57583), (3235, 24742), (6470, 12371)]