313617640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{160009}}^1$

素因数の和:160034

約数の個数: 48

約数和(自身を含む): 820851300

約数和(自身を除く): 507233660

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, 160009, 320018, 640036, 800045, 1120063, 1280072, 1600090, 2240126, 3200180, 4480252, 5600315, 6400360, 7840441, 8960504, 11200630, 15680882, 22401260, 31361764, 39202205, 44802520, 62723528, 78404410, 156808820, 313617640]

約数ペア:

[(1, 313617640), (2, 156808820), (4, 78404410), (5, 62723528), (7, 44802520), (8, 39202205), (10, 31361764), (14, 22401260), (20, 15680882), (28, 11200630), (35, 8960504), (40, 7840441), (49, 6400360), (56, 5600315), (70, 4480252), (98, 3200180), (140, 2240126), (196, 1600090), (245, 1280072), (280, 1120063), (392, 800045), (490, 640036), (980, 320018), (1960, 160009)]