28693120

素因数分解:

$2^7\times 5^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:545

約数の個数: 64

約数和(自身を含む): 69400800

約数和(自身を除く): 40707680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 320, 419, 428, 535, 640, 838, 856, 1070, 1676, 1712, 2095, 2140, 3352, 3424, 4190, 4280, 6704, 6848, 8380, 8560, 13408, 13696, 16760, 17120, 26816, 33520, 34240, 44833, 53632, 67040, 68480, 89666, 134080, 179332, 224165, 268160, 358664, 448330, 717328, 896660, 1434656, 1793320, 2869312, 3586640, 5738624, 7173280, 14346560, 28693120]

約数ペア:

[(1, 28693120), (2, 14346560), (4, 7173280), (5, 5738624), (8, 3586640), (10, 2869312), (16, 1793320), (20, 1434656), (32, 896660), (40, 717328), (64, 448330), (80, 358664), (107, 268160), (128, 224165), (160, 179332), (214, 134080), (320, 89666), (419, 68480), (428, 67040), (535, 53632), (640, 44833), (838, 34240), (856, 33520), (1070, 26816), (1676, 17120), (1712, 16760), (2095, 13696), (2140, 13408), (3352, 8560), (3424, 8380), (4190, 6848), (4280, 6704)]