28894240

素因数分解:

$2^5\times 5^1\times {\mathrm{419}}^1\times {\mathrm{431}}^1$

素因数の和:865

約数の個数: 48

約数和(自身を含む): 68584320

約数和(自身を除く): 39690080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 419, 431, 838, 862, 1676, 1724, 2095, 2155, 3352, 3448, 4190, 4310, 6704, 6896, 8380, 8620, 13408, 13792, 16760, 17240, 33520, 34480, 67040, 68960, 180589, 361178, 722356, 902945, 1444712, 1805890, 2889424, 3611780, 5778848, 7223560, 14447120, 28894240]

約数ペア:

[(1, 28894240), (2, 14447120), (4, 7223560), (5, 5778848), (8, 3611780), (10, 2889424), (16, 1805890), (20, 1444712), (32, 902945), (40, 722356), (80, 361178), (160, 180589), (419, 68960), (431, 67040), (838, 34480), (862, 33520), (1676, 17240), (1724, 16760), (2095, 13792), (2155, 13408), (3352, 8620), (3448, 8380), (4190, 6896), (4310, 6704)]