78850280

素因数分解:

$2^3\times 5^1\times {\mathrm{503}}^1\times {\mathrm{3919}}^1$

素因数の和:4433

約数の個数: 32

約数和(自身を含む): 177811200

約数和(自身を除く): 98960920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503, 1006, 2012, 2515, 3919, 4024, 5030, 7838, 10060, 15676, 19595, 20120, 31352, 39190, 78380, 156760, 1971257, 3942514, 7885028, 9856285, 15770056, 19712570, 39425140, 78850280]

約数ペア:

[(1, 78850280), (2, 39425140), (4, 19712570), (5, 15770056), (8, 9856285), (10, 7885028), (20, 3942514), (40, 1971257), (503, 156760), (1006, 78380), (2012, 39190), (2515, 31352), (3919, 20120), (4024, 19595), (5030, 15676), (7838, 10060)]