1878620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 4233600

約数和(自身を除く): 2354980

約数列:

[1, 2, 4, 5, 10, 20, 29, 41, 58, 79, 82, 116, 145, 158, 164, 205, 290, 316, 395, 410, 580, 790, 820, 1189, 1580, 2291, 2378, 3239, 4582, 4756, 5945, 6478, 9164, 11455, 11890, 12956, 16195, 22910, 23780, 32390, 45820, 64780, 93931, 187862, 375724, 469655, 939310, 1878620]

約数ペア:

[(1, 1878620), (2, 939310), (4, 469655), (5, 375724), (10, 187862), (20, 93931), (29, 64780), (41, 45820), (58, 32390), (79, 23780), (82, 22910), (116, 16195), (145, 12956), (158, 11890), (164, 11455), (205, 9164), (290, 6478), (316, 5945), (395, 4756), (410, 4582), (580, 3239), (790, 2378), (820, 2291), (1189, 1580)]