1239280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2213}}^1$

素因数の和:2233

約数の個数: 40

約数和(自身を含む): 3294432

約数和(自身を除く): 2055152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2213, 4426, 8852, 11065, 15491, 17704, 22130, 30982, 35408, 44260, 61964, 77455, 88520, 123928, 154910, 177040, 247856, 309820, 619640, 1239280]

約数ペア:

[(1, 1239280), (2, 619640), (4, 309820), (5, 247856), (7, 177040), (8, 154910), (10, 123928), (14, 88520), (16, 77455), (20, 61964), (28, 44260), (35, 35408), (40, 30982), (56, 22130), (70, 17704), (80, 15491), (112, 11065), (140, 8852), (280, 4426), (560, 2213)]