19957740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2749}}^1$

素因数の和:2783

約数の個数: 72

約数和(自身を含む): 61446000

約数和(自身を除く): 41488260

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 220, 242, 330, 363, 484, 605, 660, 726, 1210, 1452, 1815, 2420, 2749, 3630, 5498, 7260, 8247, 10996, 13745, 16494, 27490, 30239, 32988, 41235, 54980, 60478, 82470, 90717, 120956, 151195, 164940, 181434, 302390, 332629, 362868, 453585, 604780, 665258, 907170, 997887, 1330516, 1663145, 1814340, 1995774, 3326290, 3991548, 4989435, 6652580, 9978870, 19957740]

約数ペア:

[(1, 19957740), (2, 9978870), (3, 6652580), (4, 4989435), (5, 3991548), (6, 3326290), (10, 1995774), (11, 1814340), (12, 1663145), (15, 1330516), (20, 997887), (22, 907170), (30, 665258), (33, 604780), (44, 453585), (55, 362868), (60, 332629), (66, 302390), (110, 181434), (121, 164940), (132, 151195), (165, 120956), (220, 90717), (242, 82470), (330, 60478), (363, 54980), (484, 41235), (605, 32988), (660, 30239), (726, 27490), (1210, 16494), (1452, 13745), (1815, 10996), (2420, 8247), (2749, 7260), (3630, 5498)]