20969600

素因数分解:

$2^7\times 5^2\times {\mathrm{6553}}^1$

素因数の和:6577

約数の個数: 48

約数和(自身を含む): 51809370

約数和(自身を除く): 30839770

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6553, 13106, 26212, 32765, 52424, 65530, 104848, 131060, 163825, 209696, 262120, 327650, 419392, 524240, 655300, 838784, 1048480, 1310600, 2096960, 2621200, 4193920, 5242400, 10484800, 20969600]

約数ペア:

[(1, 20969600), (2, 10484800), (4, 5242400), (5, 4193920), (8, 2621200), (10, 2096960), (16, 1310600), (20, 1048480), (25, 838784), (32, 655300), (40, 524240), (50, 419392), (64, 327650), (80, 262120), (100, 209696), (128, 163825), (160, 131060), (200, 104848), (320, 65530), (400, 52424), (640, 32765), (800, 26212), (1600, 13106), (3200, 6553)]