28198960

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{5261}}^1$

素因数の和:5341

約数の個数: 40

約数和(自身を含む): 66553776

約数和(自身を除く): 38354816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5261, 5360, 10522, 21044, 26305, 42088, 52610, 84176, 105220, 210440, 352487, 420880, 704974, 1409948, 1762435, 2819896, 3524870, 5639792, 7049740, 14099480, 28198960]

約数ペア:

[(1, 28198960), (2, 14099480), (4, 7049740), (5, 5639792), (8, 3524870), (10, 2819896), (16, 1762435), (20, 1409948), (40, 704974), (67, 420880), (80, 352487), (134, 210440), (268, 105220), (335, 84176), (536, 52610), (670, 42088), (1072, 26305), (1340, 21044), (2680, 10522), (5261, 5360)]