19941540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2617}}^1$

素因数の和:2756

約数の個数: 48

約数和(自身を含む): 56297472

約数和(自身を除く): 36355932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 2617, 3810, 5234, 7620, 7851, 10468, 13085, 15702, 26170, 31404, 39255, 52340, 78510, 157020, 332359, 664718, 997077, 1329436, 1661795, 1994154, 3323590, 3988308, 4985385, 6647180, 9970770, 19941540]

約数ペア:

[(1, 19941540), (2, 9970770), (3, 6647180), (4, 4985385), (5, 3988308), (6, 3323590), (10, 1994154), (12, 1661795), (15, 1329436), (20, 997077), (30, 664718), (60, 332359), (127, 157020), (254, 78510), (381, 52340), (508, 39255), (635, 31404), (762, 26170), (1270, 15702), (1524, 13085), (1905, 10468), (2540, 7851), (2617, 7620), (3810, 5234)]