9966820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 22353408

約数和(自身を除く): 12386588

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 461, 470, 922, 940, 1081, 1844, 2162, 2305, 4324, 4610, 5405, 9220, 10603, 10810, 21206, 21620, 21667, 42412, 43334, 53015, 86668, 106030, 108335, 212060, 216670, 433340, 498341, 996682, 1993364, 2491705, 4983410, 9966820]

約数ペア:

[(1, 9966820), (2, 4983410), (4, 2491705), (5, 1993364), (10, 996682), (20, 498341), (23, 433340), (46, 216670), (47, 212060), (92, 108335), (94, 106030), (115, 86668), (188, 53015), (230, 43334), (235, 42412), (460, 21667), (461, 21620), (470, 21206), (922, 10810), (940, 10603), (1081, 9220), (1844, 5405), (2162, 4610), (2305, 4324)]