201659120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1999}}^1$

素因数の和:2122

約数の個数: 80

約数和(自身を含む): 510384000

約数和(自身を除く): 308724880

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 1999, 2522, 3880, 3998, 5044, 6305, 7760, 7996, 9995, 10088, 12610, 15992, 19990, 20176, 25220, 25987, 31984, 39980, 50440, 51974, 79960, 100880, 103948, 129935, 159920, 193903, 207896, 259870, 387806, 415792, 519740, 775612, 969515, 1039480, 1551224, 1939030, 2078960, 2520739, 3102448, 3878060, 5041478, 7756120, 10082956, 12603695, 15512240, 20165912, 25207390, 40331824, 50414780, 100829560, 201659120]

約数ペア:

[(1, 201659120), (2, 100829560), (4, 50414780), (5, 40331824), (8, 25207390), (10, 20165912), (13, 15512240), (16, 12603695), (20, 10082956), (26, 7756120), (40, 5041478), (52, 3878060), (65, 3102448), (80, 2520739), (97, 2078960), (104, 1939030), (130, 1551224), (194, 1039480), (208, 969515), (260, 775612), (388, 519740), (485, 415792), (520, 387806), (776, 259870), (970, 207896), (1040, 193903), (1261, 159920), (1552, 129935), (1940, 103948), (1999, 100880), (2522, 79960), (3880, 51974), (3998, 50440), (5044, 39980), (6305, 31984), (7760, 25987), (7996, 25220), (9995, 20176), (10088, 19990), (12610, 15992)]