18791740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{373}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 43354080

約数和(自身を除く): 24562340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 229, 373, 458, 746, 916, 1145, 1492, 1865, 2290, 2519, 3730, 4103, 4580, 5038, 7460, 8206, 10076, 12595, 16412, 20515, 25190, 41030, 50380, 82060, 85417, 170834, 341668, 427085, 854170, 939587, 1708340, 1879174, 3758348, 4697935, 9395870, 18791740]

約数ペア:

[(1, 18791740), (2, 9395870), (4, 4697935), (5, 3758348), (10, 1879174), (11, 1708340), (20, 939587), (22, 854170), (44, 427085), (55, 341668), (110, 170834), (220, 85417), (229, 82060), (373, 50380), (458, 41030), (746, 25190), (916, 20515), (1145, 16412), (1492, 12595), (1865, 10076), (2290, 8206), (2519, 7460), (3730, 5038), (4103, 4580)]