8641640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{4409}}^1$

素因数の和:4434

約数の個数: 48

約数和(自身を含む): 22623300

約数和(自身を除く): 13981660

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 4409, 8818, 17636, 22045, 30863, 35272, 44090, 61726, 88180, 123452, 154315, 176360, 216041, 246904, 308630, 432082, 617260, 864164, 1080205, 1234520, 1728328, 2160410, 4320820, 8641640]

約数ペア:

[(1, 8641640), (2, 4320820), (4, 2160410), (5, 1728328), (7, 1234520), (8, 1080205), (10, 864164), (14, 617260), (20, 432082), (28, 308630), (35, 246904), (40, 216041), (49, 176360), (56, 154315), (70, 123452), (98, 88180), (140, 61726), (196, 44090), (245, 35272), (280, 30863), (392, 22045), (490, 17636), (980, 8818), (1960, 4409)]