71587220

素因数分解:

$2^2\times 5^1\times {\mathrm{1787}}^1\times {\mathrm{2003}}^1$

素因数の和:3799

約数の個数: 24

約数和(自身を含む): 150492384

約数和(自身を除く): 78905164

約数列:

[1, 2, 4, 5, 10, 20, 1787, 2003, 3574, 4006, 7148, 8012, 8935, 10015, 17870, 20030, 35740, 40060, 3579361, 7158722, 14317444, 17896805, 35793610, 71587220]

約数ペア:

[(1, 71587220), (2, 35793610), (4, 17896805), (5, 14317444), (10, 7158722), (20, 3579361), (1787, 40060), (2003, 35740), (3574, 20030), (4006, 17870), (7148, 10015), (8012, 8935)]