18859940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1453}}^1$

素因数の和:1532

約数の個数: 48

約数和(自身を含む): 43968960

約数和(自身を除く): 25109020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1453, 2596, 2906, 3245, 5812, 6490, 7265, 12980, 14530, 15983, 29060, 31966, 63932, 79915, 85727, 159830, 171454, 319660, 342908, 428635, 857270, 942997, 1714540, 1885994, 3771988, 4714985, 9429970, 18859940]

約数ペア:

[(1, 18859940), (2, 9429970), (4, 4714985), (5, 3771988), (10, 1885994), (11, 1714540), (20, 942997), (22, 857270), (44, 428635), (55, 342908), (59, 319660), (110, 171454), (118, 159830), (220, 85727), (236, 79915), (295, 63932), (590, 31966), (649, 29060), (1180, 15983), (1298, 14530), (1453, 12980), (2596, 7265), (2906, 6490), (3245, 5812)]