21758700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 67808160

約数和(自身を除く): 46049460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 29, 30, 41, 50, 58, 60, 61, 75, 82, 87, 100, 116, 122, 123, 145, 150, 164, 174, 183, 205, 244, 246, 290, 300, 305, 348, 366, 410, 435, 492, 580, 610, 615, 725, 732, 820, 870, 915, 1025, 1189, 1220, 1230, 1450, 1525, 1740, 1769, 1830, 2050, 2175, 2378, 2460, 2501, 2900, 3050, 3075, 3538, 3567, 3660, 4100, 4350, 4575, 4756, 5002, 5307, 5945, 6100, 6150, 7076, 7134, 7503, 8700, 8845, 9150, 10004, 10614, 11890, 12300, 12505, 14268, 15006, 17690, 17835, 18300, 21228, 23780, 25010, 26535, 29725, 30012, 35380, 35670, 37515, 44225, 50020, 53070, 59450, 62525, 71340, 72529, 75030, 88450, 89175, 106140, 118900, 125050, 132675, 145058, 150060, 176900, 178350, 187575, 217587, 250100, 265350, 290116, 356700, 362645, 375150, 435174, 530700, 725290, 750300, 870348, 1087935, 1450580, 1813225, 2175870, 3626450, 4351740, 5439675, 7252900, 10879350, 21758700]

約数ペア:

[(1, 21758700), (2, 10879350), (3, 7252900), (4, 5439675), (5, 4351740), (6, 3626450), (10, 2175870), (12, 1813225), (15, 1450580), (20, 1087935), (25, 870348), (29, 750300), (30, 725290), (41, 530700), (50, 435174), (58, 375150), (60, 362645), (61, 356700), (75, 290116), (82, 265350), (87, 250100), (100, 217587), (116, 187575), (122, 178350), (123, 176900), (145, 150060), (150, 145058), (164, 132675), (174, 125050), (183, 118900), (205, 106140), (244, 89175), (246, 88450), (290, 75030), (300, 72529), (305, 71340), (348, 62525), (366, 59450), (410, 53070), (435, 50020), (492, 44225), (580, 37515), (610, 35670), (615, 35380), (725, 30012), (732, 29725), (820, 26535), (870, 25010), (915, 23780), (1025, 21228), (1189, 18300), (1220, 17835), (1230, 17690), (1450, 15006), (1525, 14268), (1740, 12505), (1769, 12300), (1830, 11890), (2050, 10614), (2175, 10004), (2378, 9150), (2460, 8845), (2501, 8700), (2900, 7503), (3050, 7134), (3075, 7076), (3538, 6150), (3567, 6100), (3660, 5945), (4100, 5307), (4350, 5002), (4575, 4756)]