28907816

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{269}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 66096000

約数和(自身を除く): 37188184

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 101, 133, 152, 202, 266, 269, 404, 532, 538, 707, 808, 1064, 1076, 1414, 1883, 1919, 2152, 2828, 3766, 3838, 5111, 5656, 7532, 7676, 10222, 13433, 15064, 15352, 20444, 26866, 27169, 35777, 40888, 53732, 54338, 71554, 107464, 108676, 143108, 190183, 217352, 286216, 380366, 516211, 760732, 1032422, 1521464, 2064844, 3613477, 4129688, 7226954, 14453908, 28907816]

約数ペア:

[(1, 28907816), (2, 14453908), (4, 7226954), (7, 4129688), (8, 3613477), (14, 2064844), (19, 1521464), (28, 1032422), (38, 760732), (56, 516211), (76, 380366), (101, 286216), (133, 217352), (152, 190183), (202, 143108), (266, 108676), (269, 107464), (404, 71554), (532, 54338), (538, 53732), (707, 40888), (808, 35777), (1064, 27169), (1076, 26866), (1414, 20444), (1883, 15352), (1919, 15064), (2152, 13433), (2828, 10222), (3766, 7676), (3838, 7532), (5111, 5656)]