156805040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{280009}}^1$

素因数の和:280029

約数の個数: 40

約数和(自身を含む): 416654880

約数和(自身を除く): 259849840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 280009, 560018, 1120036, 1400045, 1960063, 2240072, 2800090, 3920126, 4480144, 5600180, 7840252, 9800315, 11200360, 15680504, 19600630, 22400720, 31361008, 39201260, 78402520, 156805040]

約数ペア:

[(1, 156805040), (2, 78402520), (4, 39201260), (5, 31361008), (7, 22400720), (8, 19600630), (10, 15680504), (14, 11200360), (16, 9800315), (20, 7840252), (28, 5600180), (35, 4480144), (40, 3920126), (56, 2800090), (70, 2240072), (80, 1960063), (112, 1400045), (140, 1120036), (280, 560018), (560, 280009)]