159809920

素因数分解:

$2^7\times 5^1\times {\mathrm{249703}}^1$

素因数の和:249722

約数の個数: 32

約数和(自身を含む): 382047120

約数和(自身を除く): 222237200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 249703, 499406, 998812, 1248515, 1997624, 2497030, 3995248, 4994060, 7990496, 9988120, 15980992, 19976240, 31961984, 39952480, 79904960, 159809920]

約数ペア:

[(1, 159809920), (2, 79904960), (4, 39952480), (5, 31961984), (8, 19976240), (10, 15980992), (16, 9988120), (20, 7990496), (32, 4994060), (40, 3995248), (64, 2497030), (80, 1997624), (128, 1248515), (160, 998812), (320, 499406), (640, 249703)]