28350320

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{911}}^1$

素因数の和:1313

約数の個数: 40

約数和(自身を含む): 66156480

約数和(自身を除く): 37806160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 911, 1556, 1822, 1945, 3112, 3644, 3890, 4555, 6224, 7288, 7780, 9110, 14576, 15560, 18220, 31120, 36440, 72880, 354379, 708758, 1417516, 1771895, 2835032, 3543790, 5670064, 7087580, 14175160, 28350320]

約数ペア:

[(1, 28350320), (2, 14175160), (4, 7087580), (5, 5670064), (8, 3543790), (10, 2835032), (16, 1771895), (20, 1417516), (40, 708758), (80, 354379), (389, 72880), (778, 36440), (911, 31120), (1556, 18220), (1822, 15560), (1945, 14576), (3112, 9110), (3644, 7780), (3890, 7288), (4555, 6224)]