67998980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{28571}}^1$

素因数の和:28604

約数の個数: 48

約数和(自身を含む): 172803456

約数和(自身を除く): 104804476

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 595, 1190, 2380, 28571, 57142, 114284, 142855, 199997, 285710, 399994, 485707, 571420, 799988, 971414, 999985, 1942828, 1999970, 2428535, 3399949, 3999940, 4857070, 6799898, 9714140, 13599796, 16999745, 33999490, 67998980]

約数ペア:

[(1, 67998980), (2, 33999490), (4, 16999745), (5, 13599796), (7, 9714140), (10, 6799898), (14, 4857070), (17, 3999940), (20, 3399949), (28, 2428535), (34, 1999970), (35, 1942828), (68, 999985), (70, 971414), (85, 799988), (119, 571420), (140, 485707), (170, 399994), (238, 285710), (340, 199997), (476, 142855), (595, 114284), (1190, 57142), (2380, 28571)]