81811004

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 170395344

約数和(自身を除く): 88584340

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 61, 68, 121, 122, 163, 187, 242, 244, 326, 374, 484, 652, 671, 748, 1037, 1342, 1793, 2057, 2074, 2684, 2771, 3586, 4114, 4148, 5542, 7172, 7381, 8228, 9943, 11084, 11407, 14762, 19723, 19886, 22814, 29524, 30481, 39446, 39772, 45628, 60962, 78892, 109373, 121924, 125477, 169031, 218746, 250954, 335291, 338062, 437492, 501908, 670582, 676124, 1203103, 1341164, 1859341, 2406206, 3718682, 4812412, 7437364, 20452751, 40905502, 81811004]

約数ペア:

[(1, 81811004), (2, 40905502), (4, 20452751), (11, 7437364), (17, 4812412), (22, 3718682), (34, 2406206), (44, 1859341), (61, 1341164), (68, 1203103), (121, 676124), (122, 670582), (163, 501908), (187, 437492), (242, 338062), (244, 335291), (326, 250954), (374, 218746), (484, 169031), (652, 125477), (671, 121924), (748, 109373), (1037, 78892), (1342, 60962), (1793, 45628), (2057, 39772), (2074, 39446), (2684, 30481), (2771, 29524), (3586, 22814), (4114, 19886), (4148, 19723), (5542, 14762), (7172, 11407), (7381, 11084), (8228, 9943)]