81888460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{2393}}^1$

素因数の和:2490

約数の個数: 48

約数和(自身を含む): 180986400

約数和(自身を除く): 99097940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 59, 116, 118, 145, 236, 290, 295, 580, 590, 1180, 1711, 2393, 3422, 4786, 6844, 8555, 9572, 11965, 17110, 23930, 34220, 47860, 69397, 138794, 141187, 277588, 282374, 346985, 564748, 693970, 705935, 1387940, 1411870, 2823740, 4094423, 8188846, 16377692, 20472115, 40944230, 81888460]

約数ペア:

[(1, 81888460), (2, 40944230), (4, 20472115), (5, 16377692), (10, 8188846), (20, 4094423), (29, 2823740), (58, 1411870), (59, 1387940), (116, 705935), (118, 693970), (145, 564748), (236, 346985), (290, 282374), (295, 277588), (580, 141187), (590, 138794), (1180, 69397), (1711, 47860), (2393, 34220), (3422, 23930), (4786, 17110), (6844, 11965), (8555, 9572)]