20373675

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{257}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 38902272

約数和(自身を除く): 18528597

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 151, 175, 257, 453, 525, 755, 771, 1057, 1285, 1799, 2265, 3171, 3775, 3855, 5285, 5397, 6425, 8995, 11325, 15855, 19275, 26425, 26985, 38807, 44975, 79275, 116421, 134925, 194035, 271649, 582105, 814947, 970175, 1358245, 2910525, 4074735, 6791225, 20373675]

約数ペア:

[(1, 20373675), (3, 6791225), (5, 4074735), (7, 2910525), (15, 1358245), (21, 970175), (25, 814947), (35, 582105), (75, 271649), (105, 194035), (151, 134925), (175, 116421), (257, 79275), (453, 44975), (525, 38807), (755, 26985), (771, 26425), (1057, 19275), (1285, 15855), (1799, 11325), (2265, 8995), (3171, 6425), (3775, 5397), (3855, 5285)]