18933660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{359}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 57788640

約数和(自身を除く): 38854980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 293, 359, 586, 718, 879, 1077, 1172, 1436, 1465, 1758, 1795, 2154, 2637, 2930, 3231, 3516, 3590, 4308, 4395, 5274, 5385, 5860, 6462, 7180, 8790, 10548, 10770, 12924, 13185, 16155, 17580, 21540, 26370, 32310, 52740, 64620, 105187, 210374, 315561, 420748, 525935, 631122, 946683, 1051870, 1262244, 1577805, 1893366, 2103740, 3155610, 3786732, 4733415, 6311220, 9466830, 18933660]

約数ペア:

[(1, 18933660), (2, 9466830), (3, 6311220), (4, 4733415), (5, 3786732), (6, 3155610), (9, 2103740), (10, 1893366), (12, 1577805), (15, 1262244), (18, 1051870), (20, 946683), (30, 631122), (36, 525935), (45, 420748), (60, 315561), (90, 210374), (180, 105187), (293, 64620), (359, 52740), (586, 32310), (718, 26370), (879, 21540), (1077, 17580), (1172, 16155), (1436, 13185), (1465, 12924), (1758, 10770), (1795, 10548), (2154, 8790), (2637, 7180), (2930, 6462), (3231, 5860), (3516, 5385), (3590, 5274), (4308, 4395)]