127648000

素因数分解:

$2^8\times 5^3\times {\mathrm{3989}}^1$

素因数の和:4020

約数の個数: 72

約数和(自身を含む): 318066840

約数和(自身を除く): 190418840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 640, 800, 1000, 1280, 1600, 2000, 3200, 3989, 4000, 6400, 7978, 8000, 15956, 16000, 19945, 31912, 32000, 39890, 63824, 79780, 99725, 127648, 159560, 199450, 255296, 319120, 398900, 498625, 510592, 638240, 797800, 997250, 1021184, 1276480, 1595600, 1994500, 2552960, 3191200, 3989000, 5105920, 6382400, 7978000, 12764800, 15956000, 25529600, 31912000, 63824000, 127648000]

約数ペア:

[(1, 127648000), (2, 63824000), (4, 31912000), (5, 25529600), (8, 15956000), (10, 12764800), (16, 7978000), (20, 6382400), (25, 5105920), (32, 3989000), (40, 3191200), (50, 2552960), (64, 1994500), (80, 1595600), (100, 1276480), (125, 1021184), (128, 997250), (160, 797800), (200, 638240), (250, 510592), (256, 498625), (320, 398900), (400, 319120), (500, 255296), (640, 199450), (800, 159560), (1000, 127648), (1280, 99725), (1600, 79780), (2000, 63824), (3200, 39890), (3989, 32000), (4000, 31912), (6400, 19945), (7978, 16000), (8000, 15956)]