20211200

素因数分解:

$2^9\times 5^2\times {\mathrm{1579}}^1$

素因数の和:1607

約数の個数: 60

約数和(自身を含む): 50106540

約数和(自身を除く): 29895340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1579, 1600, 2560, 3158, 3200, 6316, 6400, 7895, 12632, 12800, 15790, 25264, 31580, 39475, 50528, 63160, 78950, 101056, 126320, 157900, 202112, 252640, 315800, 404224, 505280, 631600, 808448, 1010560, 1263200, 2021120, 2526400, 4042240, 5052800, 10105600, 20211200]

約数ペア:

[(1, 20211200), (2, 10105600), (4, 5052800), (5, 4042240), (8, 2526400), (10, 2021120), (16, 1263200), (20, 1010560), (25, 808448), (32, 631600), (40, 505280), (50, 404224), (64, 315800), (80, 252640), (100, 202112), (128, 157900), (160, 126320), (200, 101056), (256, 78950), (320, 63160), (400, 50528), (512, 39475), (640, 31580), (800, 25264), (1280, 15790), (1579, 12800), (1600, 12632), (2560, 7895), (3158, 6400), (3200, 6316)]