20964800

素因数分解:

$2^6\times 5^2\times {\mathrm{13103}}^1$

素因数の和:13125

約数の個数: 42

約数和(自身を含む): 51590448

約数和(自身を除く): 30625648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 13103, 26206, 52412, 65515, 104824, 131030, 209648, 262060, 327575, 419296, 524120, 655150, 838592, 1048240, 1310300, 2096480, 2620600, 4192960, 5241200, 10482400, 20964800]

約数ペア:

[(1, 20964800), (2, 10482400), (4, 5241200), (5, 4192960), (8, 2620600), (10, 2096480), (16, 1310300), (20, 1048240), (25, 838592), (32, 655150), (40, 524120), (50, 419296), (64, 327575), (80, 262060), (100, 209648), (160, 131030), (200, 104824), (320, 65515), (400, 52412), (800, 26206), (1600, 13103)]