215808215

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1489}}^1$

素因数の和:1643

約数の個数: 32

約数和(自身を含む): 306391680

約数和(自身を除く): 90583465

約数列:

[1, 5, 7, 35, 41, 101, 205, 287, 505, 707, 1435, 1489, 3535, 4141, 7445, 10423, 20705, 28987, 52115, 61049, 144935, 150389, 305245, 427343, 751945, 1052723, 2136715, 5263615, 6165949, 30829745, 43161643, 215808215]

約数ペア:

[(1, 215808215), (5, 43161643), (7, 30829745), (35, 6165949), (41, 5263615), (101, 2136715), (205, 1052723), (287, 751945), (505, 427343), (707, 305245), (1435, 150389), (1489, 144935), (3535, 61049), (4141, 52115), (7445, 28987), (10423, 20705)]