2111780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 5019840

約数和(自身を除く): 2908060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 331, 580, 638, 662, 1276, 1324, 1595, 1655, 3190, 3310, 3641, 6380, 6620, 7282, 9599, 14564, 18205, 19198, 36410, 38396, 47995, 72820, 95990, 105589, 191980, 211178, 422356, 527945, 1055890, 2111780]

約数ペア:

[(1, 2111780), (2, 1055890), (4, 527945), (5, 422356), (10, 211178), (11, 191980), (20, 105589), (22, 95990), (29, 72820), (44, 47995), (55, 38396), (58, 36410), (110, 19198), (116, 18205), (145, 14564), (220, 9599), (290, 7282), (319, 6620), (331, 6380), (580, 3641), (638, 3310), (662, 3190), (1276, 1655), (1324, 1595)]