636880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:451

約数の個数: 40

約数和(自身を含む): 1562400

約数和(自身を除く): 925520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 419, 760, 838, 1520, 1676, 2095, 3352, 4190, 6704, 7961, 8380, 15922, 16760, 31844, 33520, 39805, 63688, 79610, 127376, 159220, 318440, 636880]

約数ペア:

[(1, 636880), (2, 318440), (4, 159220), (5, 127376), (8, 79610), (10, 63688), (16, 39805), (19, 33520), (20, 31844), (38, 16760), (40, 15922), (76, 8380), (80, 7961), (95, 6704), (152, 4190), (190, 3352), (304, 2095), (380, 1676), (419, 1520), (760, 838)]