2015968720

素因数分解:

$2^4\times 5^1\times {\mathrm{3187}}^1\times {\mathrm{7907}}^1$

素因数の和:11107

約数の個数: 40

約数和(自身を含む): 4689190944

約数和(自身を除く): 2673222224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3187, 6374, 7907, 12748, 15814, 15935, 25496, 31628, 31870, 39535, 50992, 63256, 63740, 79070, 126512, 127480, 158140, 254960, 316280, 632560, 25199609, 50399218, 100798436, 125998045, 201596872, 251996090, 403193744, 503992180, 1007984360, 2015968720]

約数ペア:

[(1, 2015968720), (2, 1007984360), (4, 503992180), (5, 403193744), (8, 251996090), (10, 201596872), (16, 125998045), (20, 100798436), (40, 50399218), (80, 25199609), (3187, 632560), (6374, 316280), (7907, 254960), (12748, 158140), (15814, 127480), (15935, 126512), (25496, 79070), (31628, 63740), (31870, 63256), (39535, 50992)]