19647420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25189}}^1$

素因数の和:25214

約数の個数: 48

約数和(自身を含む): 59246880

約数和(自身を除く): 39599460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25189, 50378, 75567, 100756, 125945, 151134, 251890, 302268, 327457, 377835, 503780, 654914, 755670, 982371, 1309828, 1511340, 1637285, 1964742, 3274570, 3929484, 4911855, 6549140, 9823710, 19647420]

約数ペア:

[(1, 19647420), (2, 9823710), (3, 6549140), (4, 4911855), (5, 3929484), (6, 3274570), (10, 1964742), (12, 1637285), (13, 1511340), (15, 1309828), (20, 982371), (26, 755670), (30, 654914), (39, 503780), (52, 377835), (60, 327457), (65, 302268), (78, 251890), (130, 151134), (156, 125945), (195, 100756), (260, 75567), (390, 50378), (780, 25189)]