1245978020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{8899843}}^1$

素因数の和:8899859

約数の個数: 24

約数和(自身を含む): 2990347584

約数和(自身を除く): 1744369564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 8899843, 17799686, 35599372, 44499215, 62298901, 88998430, 124597802, 177996860, 249195604, 311494505, 622989010, 1245978020]

約数ペア:

[(1, 1245978020), (2, 622989010), (4, 311494505), (5, 249195604), (7, 177996860), (10, 124597802), (14, 88998430), (20, 62298901), (28, 44499215), (35, 35599372), (70, 17799686), (140, 8899843)]