18163905

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 34007040

約数和(自身を除く): 15843135

約数列:

[1, 3, 5, 15, 17, 19, 23, 51, 57, 69, 85, 95, 115, 163, 255, 285, 323, 345, 391, 437, 489, 815, 969, 1173, 1311, 1615, 1955, 2185, 2445, 2771, 3097, 3749, 4845, 5865, 6555, 7429, 8313, 9291, 11247, 13855, 15485, 18745, 22287, 37145, 41565, 46455, 52649, 56235, 63733, 71231, 111435, 157947, 191199, 213693, 263245, 318665, 356155, 789735, 955995, 1068465, 1210927, 3632781, 6054635, 18163905]

約数ペア:

[(1, 18163905), (3, 6054635), (5, 3632781), (15, 1210927), (17, 1068465), (19, 955995), (23, 789735), (51, 356155), (57, 318665), (69, 263245), (85, 213693), (95, 191199), (115, 157947), (163, 111435), (255, 71231), (285, 63733), (323, 56235), (345, 52649), (391, 46455), (437, 41565), (489, 37145), (815, 22287), (969, 18745), (1173, 15485), (1311, 13855), (1615, 11247), (1955, 9291), (2185, 8313), (2445, 7429), (2771, 6555), (3097, 5865), (3749, 4845)]