2070400

素因数分解:

$2^7\times 5^2\times {\mathrm{647}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 5122440

約数和(自身を除く): 3052040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 647, 800, 1294, 1600, 2588, 3200, 3235, 5176, 6470, 10352, 12940, 16175, 20704, 25880, 32350, 41408, 51760, 64700, 82816, 103520, 129400, 207040, 258800, 414080, 517600, 1035200, 2070400]

約数ペア:

[(1, 2070400), (2, 1035200), (4, 517600), (5, 414080), (8, 258800), (10, 207040), (16, 129400), (20, 103520), (25, 82816), (32, 64700), (40, 51760), (50, 41408), (64, 32350), (80, 25880), (100, 20704), (128, 16175), (160, 12940), (200, 10352), (320, 6470), (400, 5176), (640, 3235), (647, 3200), (800, 2588), (1294, 1600)]