28640800

素因数分解:

$2^5\times 5^2\times {\mathrm{35801}}^1$

素因数の和:35821

約数の個数: 36

約数和(自身を含む): 69921306

約数和(自身を除く): 41280506

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 35801, 71602, 143204, 179005, 286408, 358010, 572816, 716020, 895025, 1145632, 1432040, 1790050, 2864080, 3580100, 5728160, 7160200, 14320400, 28640800]

約数ペア:

[(1, 28640800), (2, 14320400), (4, 7160200), (5, 5728160), (8, 3580100), (10, 2864080), (16, 1790050), (20, 1432040), (25, 1145632), (32, 895025), (40, 716020), (50, 572816), (80, 358010), (100, 286408), (160, 179005), (200, 143204), (400, 71602), (800, 35801)]