28057250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 57788640

約数和(自身を除く): 29731390

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 89, 97, 125, 130, 178, 194, 250, 325, 445, 485, 650, 890, 970, 1157, 1261, 1625, 2225, 2314, 2425, 2522, 3250, 4450, 4850, 5785, 6305, 8633, 11125, 11570, 12125, 12610, 17266, 22250, 24250, 28925, 31525, 43165, 57850, 63050, 86330, 112229, 144625, 157625, 215825, 224458, 289250, 315250, 431650, 561145, 1079125, 1122290, 2158250, 2805725, 5611450, 14028625, 28057250]

約数ペア:

[(1, 28057250), (2, 14028625), (5, 5611450), (10, 2805725), (13, 2158250), (25, 1122290), (26, 1079125), (50, 561145), (65, 431650), (89, 315250), (97, 289250), (125, 224458), (130, 215825), (178, 157625), (194, 144625), (250, 112229), (325, 86330), (445, 63050), (485, 57850), (650, 43165), (890, 31525), (970, 28925), (1157, 24250), (1261, 22250), (1625, 17266), (2225, 12610), (2314, 12125), (2425, 11570), (2522, 11125), (3250, 8633), (4450, 6305), (4850, 5785)]