279992080

素因数分解:

$2^4\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{2711}}^1$

素因数の和:4015

約数の個数: 40

約数和(自身を含む): 651726144

約数和(自身を除く): 371734064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1291, 2582, 2711, 5164, 5422, 6455, 10328, 10844, 12910, 13555, 20656, 21688, 25820, 27110, 43376, 51640, 54220, 103280, 108440, 216880, 3499901, 6999802, 13999604, 17499505, 27999208, 34999010, 55998416, 69998020, 139996040, 279992080]

約数ペア:

[(1, 279992080), (2, 139996040), (4, 69998020), (5, 55998416), (8, 34999010), (10, 27999208), (16, 17499505), (20, 13999604), (40, 6999802), (80, 3499901), (1291, 216880), (2582, 108440), (2711, 103280), (5164, 54220), (5422, 51640), (6455, 43376), (10328, 27110), (10844, 25820), (12910, 21688), (13555, 20656)]