645875775

素因数分解:

$3^7\times 5^2\times {\mathrm{11813}}^1$

素因数の和:11844

約数の個数: 48

約数和(自身を含む): 1201247520

約数和(自身を除く): 555371745

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1215, 2025, 2187, 3645, 6075, 10935, 11813, 18225, 35439, 54675, 59065, 106317, 177195, 295325, 318951, 531585, 885975, 956853, 1594755, 2657925, 2870559, 4784265, 7973775, 8611677, 14352795, 23921325, 25835031, 43058385, 71763975, 129175155, 215291925, 645875775]

約数ペア:

[(1, 645875775), (3, 215291925), (5, 129175155), (9, 71763975), (15, 43058385), (25, 25835031), (27, 23921325), (45, 14352795), (75, 8611677), (81, 7973775), (135, 4784265), (225, 2870559), (243, 2657925), (405, 1594755), (675, 956853), (729, 885975), (1215, 531585), (2025, 318951), (2187, 295325), (3645, 177195), (6075, 106317), (10935, 59065), (11813, 54675), (18225, 35439)]