72042020

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{251}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 154441728

約数和(自身を除く): 82399708

約数列:

[1, 2, 4, 5, 10, 20, 113, 127, 226, 251, 254, 452, 502, 508, 565, 635, 1004, 1130, 1255, 1270, 2260, 2510, 2540, 5020, 14351, 28363, 28702, 31877, 56726, 57404, 63754, 71755, 113452, 127508, 141815, 143510, 159385, 283630, 287020, 318770, 567260, 637540, 3602101, 7204202, 14408404, 18010505, 36021010, 72042020]

約数ペア:

[(1, 72042020), (2, 36021010), (4, 18010505), (5, 14408404), (10, 7204202), (20, 3602101), (113, 637540), (127, 567260), (226, 318770), (251, 287020), (254, 283630), (452, 159385), (502, 143510), (508, 141815), (565, 127508), (635, 113452), (1004, 71755), (1130, 63754), (1255, 57404), (1270, 56726), (2260, 31877), (2510, 28702), (2540, 28363), (5020, 14351)]