28815691415

素因数分解:

$5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{7829}}^1$

素因数の和:8112

約数の個数: 48

約数和(自身を含む): 40939123680

約数和(自身を除く): 12123432265

約数列:

[1, 5, 7, 35, 49, 83, 181, 245, 415, 581, 905, 1267, 2905, 4067, 6335, 7829, 8869, 15023, 20335, 39145, 44345, 54803, 75115, 105161, 274015, 383621, 525805, 649807, 736127, 1417049, 1918105, 3249035, 3680635, 4548649, 7085245, 9919343, 22743245, 31840543, 49596715, 69435401, 117615067, 159202715, 347177005, 588075335, 823305469, 4116527345, 5763138283, 28815691415]

約数ペア:

[(1, 28815691415), (5, 5763138283), (7, 4116527345), (35, 823305469), (49, 588075335), (83, 347177005), (181, 159202715), (245, 117615067), (415, 69435401), (581, 49596715), (905, 31840543), (1267, 22743245), (2905, 9919343), (4067, 7085245), (6335, 4548649), (7829, 3680635), (8869, 3249035), (15023, 1918105), (20335, 1417049), (39145, 736127), (44345, 649807), (54803, 525805), (75115, 383621), (105161, 274015)]