129778280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{69031}}^1$

素因数の和:69089

約数の個数: 32

約数和(自身を含む): 298218240

約数和(自身を除く): 168439960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 69031, 138062, 276124, 345155, 552248, 690310, 1380620, 2761240, 3244457, 6488914, 12977828, 16222285, 25955656, 32444570, 64889140, 129778280]

約数ペア:

[(1, 129778280), (2, 64889140), (4, 32444570), (5, 25955656), (8, 16222285), (10, 12977828), (20, 6488914), (40, 3244457), (47, 2761240), (94, 1380620), (188, 690310), (235, 552248), (376, 345155), (470, 276124), (940, 138062), (1880, 69031)]