2615920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1753

約数の個数: 40

約数和(自身を含む): 6405840

約数和(自身を除く): 3789920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 1721, 3442, 6884, 8605, 13768, 17210, 27536, 32699, 34420, 65398, 68840, 130796, 137680, 163495, 261592, 326990, 523184, 653980, 1307960, 2615920]

約数ペア:

[(1, 2615920), (2, 1307960), (4, 653980), (5, 523184), (8, 326990), (10, 261592), (16, 163495), (19, 137680), (20, 130796), (38, 68840), (40, 65398), (76, 34420), (80, 32699), (95, 27536), (152, 17210), (190, 13768), (304, 8605), (380, 6884), (760, 3442), (1520, 1721)]