21442000

素因数分解:

$2^4\times 5^3\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 52925184

約数和(自身を除く): 31483184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 125, 142, 151, 200, 250, 284, 302, 355, 400, 500, 568, 604, 710, 755, 1000, 1136, 1208, 1420, 1510, 1775, 2000, 2416, 2840, 3020, 3550, 3775, 5680, 6040, 7100, 7550, 8875, 10721, 12080, 14200, 15100, 17750, 18875, 21442, 28400, 30200, 35500, 37750, 42884, 53605, 60400, 71000, 75500, 85768, 107210, 142000, 151000, 171536, 214420, 268025, 302000, 428840, 536050, 857680, 1072100, 1340125, 2144200, 2680250, 4288400, 5360500, 10721000, 21442000]

約数ペア:

[(1, 21442000), (2, 10721000), (4, 5360500), (5, 4288400), (8, 2680250), (10, 2144200), (16, 1340125), (20, 1072100), (25, 857680), (40, 536050), (50, 428840), (71, 302000), (80, 268025), (100, 214420), (125, 171536), (142, 151000), (151, 142000), (200, 107210), (250, 85768), (284, 75500), (302, 71000), (355, 60400), (400, 53605), (500, 42884), (568, 37750), (604, 35500), (710, 30200), (755, 28400), (1000, 21442), (1136, 18875), (1208, 17750), (1420, 15100), (1510, 14200), (1775, 12080), (2000, 10721), (2416, 8875), (2840, 7550), (3020, 7100), (3550, 6040), (3775, 5680)]