25870720

素因数分解:

$2^7\times 5^1\times {\mathrm{40423}}^1$

素因数の和:40442

約数の個数: 32

約数和(自身を含む): 61848720

約数和(自身を除く): 35978000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40423, 80846, 161692, 202115, 323384, 404230, 646768, 808460, 1293536, 1616920, 2587072, 3233840, 5174144, 6467680, 12935360, 25870720]

約数ペア:

[(1, 25870720), (2, 12935360), (4, 6467680), (5, 5174144), (8, 3233840), (10, 2587072), (16, 1616920), (20, 1293536), (32, 808460), (40, 646768), (64, 404230), (80, 323384), (128, 202115), (160, 161692), (320, 80846), (640, 40423)]