87911420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{258563}}^1$

素因数の和:258589

約数の個数: 24

約数和(自身を含む): 195474384

約数和(自身を除く): 107562964

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 258563, 517126, 1034252, 1292815, 2585630, 4395571, 5171260, 8791142, 17582284, 21977855, 43955710, 87911420]

約数ペア:

[(1, 87911420), (2, 43955710), (4, 21977855), (5, 17582284), (10, 8791142), (17, 5171260), (20, 4395571), (34, 2585630), (68, 1292815), (85, 1034252), (170, 517126), (340, 258563)]