2018619820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{497197}}^1$

素因数の和:497242

約数の個数: 48

約数和(自身を含む): 5011755840

約数和(自身を除く): 2993136020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 497197, 994394, 1988788, 2485985, 3480379, 4971970, 6960758, 9943940, 13921516, 14418713, 17401895, 28837426, 34803790, 57674852, 69607580, 72093565, 100930991, 144187130, 201861982, 288374260, 403723964, 504654955, 1009309910, 2018619820]

約数ペア:

[(1, 2018619820), (2, 1009309910), (4, 504654955), (5, 403723964), (7, 288374260), (10, 201861982), (14, 144187130), (20, 100930991), (28, 72093565), (29, 69607580), (35, 57674852), (58, 34803790), (70, 28837426), (116, 17401895), (140, 14418713), (145, 13921516), (203, 9943940), (290, 6960758), (406, 4971970), (580, 3480379), (812, 2485985), (1015, 1988788), (2030, 994394), (4060, 497197)]