78927280

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3511}}^1$

素因数の和:3805

約数の個数: 40

約数和(自身を含む): 184211424

約数和(自身を除く): 105284144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 1124, 1405, 2248, 2810, 3511, 4496, 5620, 7022, 11240, 14044, 17555, 22480, 28088, 35110, 56176, 70220, 140440, 280880, 986591, 1973182, 3946364, 4932955, 7892728, 9865910, 15785456, 19731820, 39463640, 78927280]

約数ペア:

[(1, 78927280), (2, 39463640), (4, 19731820), (5, 15785456), (8, 9865910), (10, 7892728), (16, 4932955), (20, 3946364), (40, 1973182), (80, 986591), (281, 280880), (562, 140440), (1124, 70220), (1405, 56176), (2248, 35110), (2810, 28088), (3511, 22480), (4496, 17555), (5620, 14044), (7022, 11240)]