31109360

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5477}}^1$

素因数の和:5561

約数の個数: 40

約数和(自身を含む): 73361376

約数和(自身を除く): 42252016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5477, 5680, 10954, 21908, 27385, 43816, 54770, 87632, 109540, 219080, 388867, 438160, 777734, 1555468, 1944335, 3110936, 3888670, 6221872, 7777340, 15554680, 31109360]

約数ペア:

[(1, 31109360), (2, 15554680), (4, 7777340), (5, 6221872), (8, 3888670), (10, 3110936), (16, 1944335), (20, 1555468), (40, 777734), (71, 438160), (80, 388867), (142, 219080), (284, 109540), (355, 87632), (568, 54770), (710, 43816), (1136, 27385), (1420, 21908), (2840, 10954), (5477, 5680)]