10721000

素因数分解:

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

素因数の和:243

約数の個数: 64

約数和(自身を含む): 25608960

約数和(自身を除く): 14887960

約数列:

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

約数ペア:

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