28671880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 66977280

約数和(自身を除く): 38305400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 101, 151, 188, 202, 235, 302, 376, 404, 470, 505, 604, 755, 808, 940, 1010, 1208, 1510, 1880, 2020, 3020, 4040, 4747, 6040, 7097, 9494, 14194, 15251, 18988, 23735, 28388, 30502, 35485, 37976, 47470, 56776, 61004, 70970, 76255, 94940, 122008, 141940, 152510, 189880, 283880, 305020, 610040, 716797, 1433594, 2867188, 3583985, 5734376, 7167970, 14335940, 28671880]

約数ペア:

[(1, 28671880), (2, 14335940), (4, 7167970), (5, 5734376), (8, 3583985), (10, 2867188), (20, 1433594), (40, 716797), (47, 610040), (94, 305020), (101, 283880), (151, 189880), (188, 152510), (202, 141940), (235, 122008), (302, 94940), (376, 76255), (404, 70970), (470, 61004), (505, 56776), (604, 47470), (755, 37976), (808, 35485), (940, 30502), (1010, 28388), (1208, 23735), (1510, 18988), (1880, 15251), (2020, 14194), (3020, 9494), (4040, 7097), (4747, 6040)]