18166120775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^2\times {\mathrm{223}}^1$

素因数の和:453

約数の個数: 72

約数和(自身を含む): 25566030336

約数和(自身を除く): 7399909561

約数列:

[1, 5, 11, 25, 43, 55, 83, 215, 223, 275, 415, 473, 913, 1075, 1115, 2075, 2365, 2453, 3569, 4565, 5575, 6889, 9589, 11825, 12265, 17845, 18509, 22825, 34445, 39259, 47945, 61325, 75779, 89225, 92545, 105479, 172225, 196295, 203599, 239725, 296227, 378895, 462725, 527395, 795887, 981475, 1017995, 1481135, 1536247, 1894475, 2636975, 3258497, 3979435, 5089975, 7405675, 7681235, 8754757, 16292485, 16898717, 19897175, 38406175, 43773785, 66058621, 81462425, 84493585, 218868925, 330293105, 422467925, 726644831, 1651465525, 3633224155, 18166120775]

約数ペア:

[(1, 18166120775), (5, 3633224155), (11, 1651465525), (25, 726644831), (43, 422467925), (55, 330293105), (83, 218868925), (215, 84493585), (223, 81462425), (275, 66058621), (415, 43773785), (473, 38406175), (913, 19897175), (1075, 16898717), (1115, 16292485), (2075, 8754757), (2365, 7681235), (2453, 7405675), (3569, 5089975), (4565, 3979435), (5575, 3258497), (6889, 2636975), (9589, 1894475), (11825, 1536247), (12265, 1481135), (17845, 1017995), (18509, 981475), (22825, 795887), (34445, 527395), (39259, 462725), (47945, 378895), (61325, 296227), (75779, 239725), (89225, 203599), (92545, 196295), (105479, 172225)]