720123650

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{2521}}^1$

素因数の和:2759

約数の個数: 48

約数和(自身を含む): 1393203240

約数和(自身を除く): 673079590

約数列:

[1, 2, 5, 10, 25, 29, 50, 58, 145, 197, 290, 394, 725, 985, 1450, 1970, 2521, 4925, 5042, 5713, 9850, 11426, 12605, 25210, 28565, 57130, 63025, 73109, 126050, 142825, 146218, 285650, 365545, 496637, 731090, 993274, 1827725, 2483185, 3655450, 4966370, 12415925, 14402473, 24831850, 28804946, 72012365, 144024730, 360061825, 720123650]

約数ペア:

[(1, 720123650), (2, 360061825), (5, 144024730), (10, 72012365), (25, 28804946), (29, 24831850), (50, 14402473), (58, 12415925), (145, 4966370), (197, 3655450), (290, 2483185), (394, 1827725), (725, 993274), (985, 731090), (1450, 496637), (1970, 365545), (2521, 285650), (4925, 146218), (5042, 142825), (5713, 126050), (9850, 73109), (11426, 63025), (12605, 57130), (25210, 28565)]