86899840

素因数分解:

$2^7\times 5^1\times {\mathrm{135781}}^1$

素因数の和:135800

約数の個数: 32

約数和(自身を含む): 207746460

約数和(自身を除く): 120846620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 135781, 271562, 543124, 678905, 1086248, 1357810, 2172496, 2715620, 4344992, 5431240, 8689984, 10862480, 17379968, 21724960, 43449920, 86899840]

約数ペア:

[(1, 86899840), (2, 43449920), (4, 21724960), (5, 17379968), (8, 10862480), (10, 8689984), (16, 5431240), (20, 4344992), (32, 2715620), (40, 2172496), (64, 1357810), (80, 1086248), (128, 678905), (160, 543124), (320, 271562), (640, 135781)]