20566968

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 128

約数和(自身を含む): 59097600

約数和(自身を除く): 38530632

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 23, 24, 37, 38, 46, 53, 57, 69, 74, 76, 92, 106, 111, 114, 138, 148, 152, 159, 184, 212, 222, 228, 276, 296, 318, 424, 437, 444, 456, 552, 636, 703, 851, 874, 888, 1007, 1219, 1272, 1311, 1406, 1702, 1748, 1961, 2014, 2109, 2438, 2553, 2622, 2812, 3021, 3404, 3496, 3657, 3922, 4028, 4218, 4876, 5106, 5244, 5624, 5883, 6042, 6808, 7314, 7844, 8056, 8436, 9752, 10212, 10488, 11766, 12084, 14628, 15688, 16169, 16872, 20424, 23161, 23532, 24168, 29256, 32338, 37259, 45103, 46322, 47064, 48507, 64676, 69483, 74518, 90206, 92644, 97014, 111777, 129352, 135309, 138966, 149036, 180412, 185288, 194028, 223554, 270618, 277932, 298072, 360824, 388056, 447108, 541236, 555864, 856957, 894216, 1082472, 1713914, 2570871, 3427828, 5141742, 6855656, 10283484, 20566968]

約数ペア:

[(1, 20566968), (2, 10283484), (3, 6855656), (4, 5141742), (6, 3427828), (8, 2570871), (12, 1713914), (19, 1082472), (23, 894216), (24, 856957), (37, 555864), (38, 541236), (46, 447108), (53, 388056), (57, 360824), (69, 298072), (74, 277932), (76, 270618), (92, 223554), (106, 194028), (111, 185288), (114, 180412), (138, 149036), (148, 138966), (152, 135309), (159, 129352), (184, 111777), (212, 97014), (222, 92644), (228, 90206), (276, 74518), (296, 69483), (318, 64676), (424, 48507), (437, 47064), (444, 46322), (456, 45103), (552, 37259), (636, 32338), (703, 29256), (851, 24168), (874, 23532), (888, 23161), (1007, 20424), (1219, 16872), (1272, 16169), (1311, 15688), (1406, 14628), (1702, 12084), (1748, 11766), (1961, 10488), (2014, 10212), (2109, 9752), (2438, 8436), (2553, 8056), (2622, 7844), (2812, 7314), (3021, 6808), (3404, 6042), (3496, 5883), (3657, 5624), (3922, 5244), (4028, 5106), (4218, 4876)]