20218530268

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1\times {\mathrm{277}}^1$

素因数の和:695

約数の個数: 96

約数和(自身を含む): 38920311360

約数和(自身を除く): 18701781092

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 101, 148, 202, 257, 277, 404, 514, 554, 703, 1028, 1108, 1406, 1919, 2812, 3737, 3838, 4883, 5263, 7474, 7676, 9509, 9766, 10249, 10526, 14948, 19018, 19532, 20498, 21052, 25957, 27977, 38036, 40996, 51914, 55954, 71003, 71189, 103828, 111908, 142006, 142378, 180671, 194731, 284012, 284756, 361342, 389462, 493183, 531563, 722684, 778924, 960409, 986366, 1035149, 1063126, 1352591, 1920818, 1972732, 2070298, 2126252, 2633993, 2705182, 3841636, 4140596, 5267986, 5410364, 7190089, 10535972, 14380178, 18247771, 19667831, 28760356, 36495542, 39335662, 50045867, 72991084, 78671324, 100091734, 136611691, 200183468, 266033293, 273223382, 532066586, 546446764, 1064133172, 5054632567, 10109265134, 20218530268]

約数ペア:

[(1, 20218530268), (2, 10109265134), (4, 5054632567), (19, 1064133172), (37, 546446764), (38, 532066586), (74, 273223382), (76, 266033293), (101, 200183468), (148, 136611691), (202, 100091734), (257, 78671324), (277, 72991084), (404, 50045867), (514, 39335662), (554, 36495542), (703, 28760356), (1028, 19667831), (1108, 18247771), (1406, 14380178), (1919, 10535972), (2812, 7190089), (3737, 5410364), (3838, 5267986), (4883, 4140596), (5263, 3841636), (7474, 2705182), (7676, 2633993), (9509, 2126252), (9766, 2070298), (10249, 1972732), (10526, 1920818), (14948, 1352591), (19018, 1063126), (19532, 1035149), (20498, 986366), (21052, 960409), (25957, 778924), (27977, 722684), (38036, 531563), (40996, 493183), (51914, 389462), (55954, 361342), (71003, 284756), (71189, 284012), (103828, 194731), (111908, 180671), (142006, 142378)]