280058960

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{112927}}^1$

素因数の和:112971

約数の個数: 40

約数和(自身を含む): 672147456

約数和(自身を除く): 392088496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 112927, 225854, 451708, 564635, 903416, 1129270, 1806832, 2258540, 3500737, 4517080, 7001474, 9034160, 14002948, 17503685, 28005896, 35007370, 56011792, 70014740, 140029480, 280058960]

約数ペア:

[(1, 280058960), (2, 140029480), (4, 70014740), (5, 56011792), (8, 35007370), (10, 28005896), (16, 17503685), (20, 14002948), (31, 9034160), (40, 7001474), (62, 4517080), (80, 3500737), (124, 2258540), (155, 1806832), (248, 1129270), (310, 903416), (496, 564635), (620, 451708), (1240, 225854), (2480, 112927)]