28219060

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21059}}^1$

素因数の和:21135

約数の個数: 24

約数和(自身を含む): 60147360

約数和(自身を除く): 31928300

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21059, 42118, 84236, 105295, 210590, 421180, 1410953, 2821906, 5643812, 7054765, 14109530, 28219060]

約数ペア:

[(1, 28219060), (2, 14109530), (4, 7054765), (5, 5643812), (10, 2821906), (20, 1410953), (67, 421180), (134, 210590), (268, 105295), (335, 84236), (670, 42118), (1340, 21059)]