20864910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2749}}^1$

素因数の和:2793

約数の個数: 64

約数和(自身を含む): 57024000

約数和(自身を除く): 36159090

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 23, 30, 33, 46, 55, 66, 69, 110, 115, 138, 165, 230, 253, 330, 345, 506, 690, 759, 1265, 1518, 2530, 2749, 3795, 5498, 7590, 8247, 13745, 16494, 27490, 30239, 41235, 60478, 63227, 82470, 90717, 126454, 151195, 181434, 189681, 302390, 316135, 379362, 453585, 632270, 695497, 907170, 948405, 1390994, 1896810, 2086491, 3477485, 4172982, 6954970, 10432455, 20864910]

約数ペア:

[(1, 20864910), (2, 10432455), (3, 6954970), (5, 4172982), (6, 3477485), (10, 2086491), (11, 1896810), (15, 1390994), (22, 948405), (23, 907170), (30, 695497), (33, 632270), (46, 453585), (55, 379362), (66, 316135), (69, 302390), (110, 189681), (115, 181434), (138, 151195), (165, 126454), (230, 90717), (253, 82470), (330, 63227), (345, 60478), (506, 41235), (690, 30239), (759, 27490), (1265, 16494), (1518, 13745), (2530, 8247), (2749, 7590), (3795, 5498)]