20187698180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{601}}^1\times {\mathrm{129193}}^1$

素因数の和:129816

約数の個数: 48

約数和(自身を含む): 45731575344

約数和(自身を除く): 25543877164

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 601, 1202, 2404, 3005, 6010, 7813, 12020, 15626, 31252, 39065, 78130, 129193, 156260, 258386, 516772, 645965, 1291930, 1679509, 2583860, 3359018, 6718036, 8397545, 16795090, 33590180, 77644993, 155289986, 310579972, 388224965, 776449930, 1009384909, 1552899860, 2018769818, 4037539636, 5046924545, 10093849090, 20187698180]

約数ペア:

[(1, 20187698180), (2, 10093849090), (4, 5046924545), (5, 4037539636), (10, 2018769818), (13, 1552899860), (20, 1009384909), (26, 776449930), (52, 388224965), (65, 310579972), (130, 155289986), (260, 77644993), (601, 33590180), (1202, 16795090), (2404, 8397545), (3005, 6718036), (6010, 3359018), (7813, 2583860), (12020, 1679509), (15626, 1291930), (31252, 645965), (39065, 516772), (78130, 258386), (129193, 156260)]