28910120

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1907}}^1$

素因数の和:2297

約数の個数: 32

約数和(自身を含む): 65253600

約数和(自身を除く): 36343480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1516, 1895, 1907, 3032, 3790, 3814, 7580, 7628, 9535, 15160, 15256, 19070, 38140, 76280, 722753, 1445506, 2891012, 3613765, 5782024, 7227530, 14455060, 28910120]

約数ペア:

[(1, 28910120), (2, 14455060), (4, 7227530), (5, 5782024), (8, 3613765), (10, 2891012), (20, 1445506), (40, 722753), (379, 76280), (758, 38140), (1516, 19070), (1895, 15256), (1907, 15160), (3032, 9535), (3790, 7628), (3814, 7580)]