25197320

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{953}}^1$

素因数の和:1625

約数の個数: 32

約数和(自身を含む): 56839320

約数和(自身を除く): 31642000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 953, 1322, 1906, 2644, 3305, 3812, 4765, 5288, 6610, 7624, 9530, 13220, 19060, 26440, 38120, 629933, 1259866, 2519732, 3149665, 5039464, 6299330, 12598660, 25197320]

約数ペア:

[(1, 25197320), (2, 12598660), (4, 6299330), (5, 5039464), (8, 3149665), (10, 2519732), (20, 1259866), (40, 629933), (661, 38120), (953, 26440), (1322, 19060), (1906, 13220), (2644, 9530), (3305, 7624), (3812, 6610), (4765, 5288)]