243523820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^2\times {\mathrm{1951}}^1$

素因数の和:2118

約数の個数: 36

約数和(自身を含む): 518220864

約数和(自身を除く): 274697044

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 1951, 3902, 6241, 7804, 9755, 12482, 19510, 24964, 31205, 39020, 62410, 124820, 154129, 308258, 616516, 770645, 1541290, 3082580, 12176191, 24352382, 48704764, 60880955, 121761910, 243523820]

約数ペア:

[(1, 243523820), (2, 121761910), (4, 60880955), (5, 48704764), (10, 24352382), (20, 12176191), (79, 3082580), (158, 1541290), (316, 770645), (395, 616516), (790, 308258), (1580, 154129), (1951, 124820), (3902, 62410), (6241, 39020), (7804, 31205), (9755, 24964), (12482, 19510)]