21987232000

素因数分解:

$2^8\times 5^3\times {\mathrm{687101}}^1$

素因数の和:687132

約数の個数: 72

約数和(自身を含む): 54773023032

約数和(自身を除く): 32785791032

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, 4000, 6400, 8000, 16000, 32000, 687101, 1374202, 2748404, 3435505, 5496808, 6871010, 10993616, 13742020, 17177525, 21987232, 27484040, 34355050, 43974464, 54968080, 68710100, 85887625, 87948928, 109936160, 137420200, 171775250, 175897856, 219872320, 274840400, 343550500, 439744640, 549680800, 687101000, 879489280, 1099361600, 1374202000, 2198723200, 2748404000, 4397446400, 5496808000, 10993616000, 21987232000]

約数ペア:

[(1, 21987232000), (2, 10993616000), (4, 5496808000), (5, 4397446400), (8, 2748404000), (10, 2198723200), (16, 1374202000), (20, 1099361600), (25, 879489280), (32, 687101000), (40, 549680800), (50, 439744640), (64, 343550500), (80, 274840400), (100, 219872320), (125, 175897856), (128, 171775250), (160, 137420200), (200, 109936160), (250, 87948928), (256, 85887625), (320, 68710100), (400, 54968080), (500, 43974464), (640, 34355050), (800, 27484040), (1000, 21987232), (1280, 17177525), (1600, 13742020), (2000, 10993616), (3200, 6871010), (4000, 5496808), (6400, 3435505), (8000, 2748404), (16000, 1374202), (32000, 687101)]