25505720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^2\times {\mathrm{227}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 58748760

約数和(自身を除く): 33243040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 227, 265, 424, 454, 530, 908, 1060, 1135, 1816, 2120, 2270, 2809, 4540, 5618, 9080, 11236, 12031, 14045, 22472, 24062, 28090, 48124, 56180, 60155, 96248, 112360, 120310, 240620, 481240, 637643, 1275286, 2550572, 3188215, 5101144, 6376430, 12752860, 25505720]

約数ペア:

[(1, 25505720), (2, 12752860), (4, 6376430), (5, 5101144), (8, 3188215), (10, 2550572), (20, 1275286), (40, 637643), (53, 481240), (106, 240620), (212, 120310), (227, 112360), (265, 96248), (424, 60155), (454, 56180), (530, 48124), (908, 28090), (1060, 24062), (1135, 22472), (1816, 14045), (2120, 12031), (2270, 11236), (2809, 9080), (4540, 5618)]