81902540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9371}}^1$

素因数の和:9422

約数の個数: 48

約数和(自身を含む): 188939520

約数和(自身を除く): 107036980

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 38, 46, 76, 92, 95, 115, 190, 230, 380, 437, 460, 874, 1748, 2185, 4370, 8740, 9371, 18742, 37484, 46855, 93710, 178049, 187420, 215533, 356098, 431066, 712196, 862132, 890245, 1077665, 1780490, 2155330, 3560980, 4095127, 4310660, 8190254, 16380508, 20475635, 40951270, 81902540]

約数ペア:

[(1, 81902540), (2, 40951270), (4, 20475635), (5, 16380508), (10, 8190254), (19, 4310660), (20, 4095127), (23, 3560980), (38, 2155330), (46, 1780490), (76, 1077665), (92, 890245), (95, 862132), (115, 712196), (190, 431066), (230, 356098), (380, 215533), (437, 187420), (460, 178049), (874, 93710), (1748, 46855), (2185, 37484), (4370, 18742), (8740, 9371)]