16402528720

素因数分解:

$2^4\times 5^1\times {\mathrm{251}}^1\times {\mathrm{816859}}^1$

素因数の和:817123

約数の個数: 40

約数和(自身を含む): 38287861920

約数和(自身を除く): 21885333200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251, 502, 1004, 1255, 2008, 2510, 4016, 5020, 10040, 20080, 816859, 1633718, 3267436, 4084295, 6534872, 8168590, 13069744, 16337180, 32674360, 65348720, 205031609, 410063218, 820126436, 1025158045, 1640252872, 2050316090, 3280505744, 4100632180, 8201264360, 16402528720]

約数ペア:

[(1, 16402528720), (2, 8201264360), (4, 4100632180), (5, 3280505744), (8, 2050316090), (10, 1640252872), (16, 1025158045), (20, 820126436), (40, 410063218), (80, 205031609), (251, 65348720), (502, 32674360), (1004, 16337180), (1255, 13069744), (2008, 8168590), (2510, 6534872), (4016, 4084295), (5020, 3267436), (10040, 1633718), (20080, 816859)]