128867000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{4157}}^1$

素因数の和:4209

約数の個数: 64

約数和(自身を含む): 311351040

約数和(自身を除く): 182484040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 310, 500, 620, 775, 1000, 1240, 1550, 3100, 3875, 4157, 6200, 7750, 8314, 15500, 16628, 20785, 31000, 33256, 41570, 83140, 103925, 128867, 166280, 207850, 257734, 415700, 515468, 519625, 644335, 831400, 1030936, 1039250, 1288670, 2078500, 2577340, 3221675, 4157000, 5154680, 6443350, 12886700, 16108375, 25773400, 32216750, 64433500, 128867000]

約数ペア:

[(1, 128867000), (2, 64433500), (4, 32216750), (5, 25773400), (8, 16108375), (10, 12886700), (20, 6443350), (25, 5154680), (31, 4157000), (40, 3221675), (50, 2577340), (62, 2078500), (100, 1288670), (124, 1039250), (125, 1030936), (155, 831400), (200, 644335), (248, 519625), (250, 515468), (310, 415700), (500, 257734), (620, 207850), (775, 166280), (1000, 128867), (1240, 103925), (1550, 83140), (3100, 41570), (3875, 33256), (4157, 31000), (6200, 20785), (7750, 16628), (8314, 15500)]