128563785

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21481}}^1$

素因数の和:21518

約数の個数: 48

約数和(自身を含む): 268095360

約数和(自身を除く): 139531575

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 35, 45, 57, 63, 95, 105, 133, 171, 285, 315, 399, 665, 855, 1197, 1995, 5985, 21481, 64443, 107405, 150367, 193329, 322215, 408139, 451101, 751835, 966645, 1224417, 1353303, 2040695, 2255505, 2856973, 3673251, 6122085, 6766515, 8570919, 14284865, 18366255, 25712757, 42854595, 128563785]

約数ペア:

[(1, 128563785), (3, 42854595), (5, 25712757), (7, 18366255), (9, 14284865), (15, 8570919), (19, 6766515), (21, 6122085), (35, 3673251), (45, 2856973), (57, 2255505), (63, 2040695), (95, 1353303), (105, 1224417), (133, 966645), (171, 751835), (285, 451101), (315, 408139), (399, 322215), (665, 193329), (855, 150367), (1197, 107405), (1995, 64443), (5985, 21481)]