19970940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30259}}^1$

素因数の和:30282

約数の個数: 48

約数和(自身を含む): 61004160

約数和(自身を除く): 41033220

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 30259, 60518, 90777, 121036, 151295, 181554, 302590, 332849, 363108, 453885, 605180, 665698, 907770, 998547, 1331396, 1664245, 1815540, 1997094, 3328490, 3994188, 4992735, 6656980, 9985470, 19970940]

約数ペア:

[(1, 19970940), (2, 9985470), (3, 6656980), (4, 4992735), (5, 3994188), (6, 3328490), (10, 1997094), (11, 1815540), (12, 1664245), (15, 1331396), (20, 998547), (22, 907770), (30, 665698), (33, 605180), (44, 453885), (55, 363108), (60, 332849), (66, 302590), (110, 181554), (132, 151295), (165, 121036), (220, 90777), (330, 60518), (660, 30259)]