20008100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{101}}^1\times {\mathrm{283}}^1$

素因数の和:405

約数の個数: 72

約数和(自身を含む): 50288448

約数和(自身を除く): 30280348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 101, 140, 175, 202, 283, 350, 404, 505, 566, 700, 707, 1010, 1132, 1414, 1415, 1981, 2020, 2525, 2828, 2830, 3535, 3962, 5050, 5660, 7070, 7075, 7924, 9905, 10100, 14140, 14150, 17675, 19810, 28300, 28583, 35350, 39620, 49525, 57166, 70700, 99050, 114332, 142915, 198100, 200081, 285830, 400162, 571660, 714575, 800324, 1000405, 1429150, 2000810, 2858300, 4001620, 5002025, 10004050, 20008100]

約数ペア:

[(1, 20008100), (2, 10004050), (4, 5002025), (5, 4001620), (7, 2858300), (10, 2000810), (14, 1429150), (20, 1000405), (25, 800324), (28, 714575), (35, 571660), (50, 400162), (70, 285830), (100, 200081), (101, 198100), (140, 142915), (175, 114332), (202, 99050), (283, 70700), (350, 57166), (404, 49525), (505, 39620), (566, 35350), (700, 28583), (707, 28300), (1010, 19810), (1132, 17675), (1414, 14150), (1415, 14140), (1981, 10100), (2020, 9905), (2525, 7924), (2828, 7075), (2830, 7070), (3535, 5660), (3962, 5050)]