869784020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{6359}}^1$

素因数の和:7352

約数の個数: 48

約数和(自身を含む): 2089946880

約数和(自身を除く): 1220162860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 3908, 4885, 6359, 6839, 9770, 12718, 13678, 19540, 25436, 27356, 31795, 34195, 44513, 63590, 68390, 89026, 127180, 136780, 178052, 222565, 445130, 890260, 6212743, 12425486, 24850972, 31063715, 43489201, 62127430, 86978402, 124254860, 173956804, 217446005, 434892010, 869784020]

約数ペア:

[(1, 869784020), (2, 434892010), (4, 217446005), (5, 173956804), (7, 124254860), (10, 86978402), (14, 62127430), (20, 43489201), (28, 31063715), (35, 24850972), (70, 12425486), (140, 6212743), (977, 890260), (1954, 445130), (3908, 222565), (4885, 178052), (6359, 136780), (6839, 127180), (9770, 89026), (12718, 68390), (13678, 63590), (19540, 44513), (25436, 34195), (27356, 31795)]