20614240

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6781}}^1$

素因数の和:6815

約数の個数: 48

約数和(自身を含む): 51271920

約数和(自身を除く): 30657680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6781, 13562, 27124, 33905, 54248, 67810, 108496, 128839, 135620, 216992, 257678, 271240, 515356, 542480, 644195, 1030712, 1084960, 1288390, 2061424, 2576780, 4122848, 5153560, 10307120, 20614240]

約数ペア:

[(1, 20614240), (2, 10307120), (4, 5153560), (5, 4122848), (8, 2576780), (10, 2061424), (16, 1288390), (19, 1084960), (20, 1030712), (32, 644195), (38, 542480), (40, 515356), (76, 271240), (80, 257678), (95, 216992), (152, 135620), (160, 128839), (190, 108496), (304, 67810), (380, 54248), (608, 33905), (760, 27124), (1520, 13562), (3040, 6781)]