389966360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{44927}}^1$

素因数の和:44976

約数の個数: 64

約数和(自身を含む): 1035141120

約数和(自身を除く): 645174760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 44927, 89854, 179708, 224635, 314489, 359416, 449270, 628978, 898540, 1257956, 1392737, 1572445, 1797080, 2515912, 2785474, 3144890, 5570948, 6289780, 6963685, 9749159, 11141896, 12579560, 13927370, 19498318, 27854740, 38996636, 48745795, 55709480, 77993272, 97491590, 194983180, 389966360]

約数ペア:

[(1, 389966360), (2, 194983180), (4, 97491590), (5, 77993272), (7, 55709480), (8, 48745795), (10, 38996636), (14, 27854740), (20, 19498318), (28, 13927370), (31, 12579560), (35, 11141896), (40, 9749159), (56, 6963685), (62, 6289780), (70, 5570948), (124, 3144890), (140, 2785474), (155, 2515912), (217, 1797080), (248, 1572445), (280, 1392737), (310, 1257956), (434, 898540), (620, 628978), (868, 449270), (1085, 359416), (1240, 314489), (1736, 224635), (2170, 179708), (4340, 89854), (8680, 44927)]