28691800

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{3499}}^1$

素因数の和:3556

約数の個数: 48

約数和(自身を含む): 68355000

約数和(自身を除く): 39663200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 3499, 4100, 6998, 8200, 13996, 17495, 27992, 34990, 69980, 87475, 139960, 143459, 174950, 286918, 349900, 573836, 699800, 717295, 1147672, 1434590, 2869180, 3586475, 5738360, 7172950, 14345900, 28691800]

約数ペア:

[(1, 28691800), (2, 14345900), (4, 7172950), (5, 5738360), (8, 3586475), (10, 2869180), (20, 1434590), (25, 1147672), (40, 717295), (41, 699800), (50, 573836), (82, 349900), (100, 286918), (164, 174950), (200, 143459), (205, 139960), (328, 87475), (410, 69980), (820, 34990), (1025, 27992), (1640, 17495), (2050, 13996), (3499, 8200), (4100, 6998)]