20501940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1789}}^1$

素因数の和:1992

約数の個数: 48

約数和(自身を含む): 57738240

約数和(自身を除く): 37236300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 191, 382, 573, 764, 955, 1146, 1789, 1910, 2292, 2865, 3578, 3820, 5367, 5730, 7156, 8945, 10734, 11460, 17890, 21468, 26835, 35780, 53670, 107340, 341699, 683398, 1025097, 1366796, 1708495, 2050194, 3416990, 4100388, 5125485, 6833980, 10250970, 20501940]

約数ペア:

[(1, 20501940), (2, 10250970), (3, 6833980), (4, 5125485), (5, 4100388), (6, 3416990), (10, 2050194), (12, 1708495), (15, 1366796), (20, 1025097), (30, 683398), (60, 341699), (191, 107340), (382, 53670), (573, 35780), (764, 26835), (955, 21468), (1146, 17890), (1789, 11460), (1910, 10734), (2292, 8945), (2865, 7156), (3578, 5730), (3820, 5367)]