27723855

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{163}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 51010560

約数和(自身を除く): 23286705

約数列:

[1, 3, 5, 15, 17, 23, 29, 51, 69, 85, 87, 115, 145, 163, 255, 345, 391, 435, 489, 493, 667, 815, 1173, 1479, 1955, 2001, 2445, 2465, 2771, 3335, 3749, 4727, 5865, 7395, 8313, 10005, 11247, 11339, 13855, 14181, 18745, 23635, 34017, 41565, 56235, 56695, 63733, 70905, 80359, 108721, 170085, 191199, 241077, 318665, 326163, 401795, 543605, 955995, 1205385, 1630815, 1848257, 5544771, 9241285, 27723855]

約数ペア:

[(1, 27723855), (3, 9241285), (5, 5544771), (15, 1848257), (17, 1630815), (23, 1205385), (29, 955995), (51, 543605), (69, 401795), (85, 326163), (87, 318665), (115, 241077), (145, 191199), (163, 170085), (255, 108721), (345, 80359), (391, 70905), (435, 63733), (489, 56695), (493, 56235), (667, 41565), (815, 34017), (1173, 23635), (1479, 18745), (1955, 14181), (2001, 13855), (2445, 11339), (2465, 11247), (2771, 10005), (3335, 8313), (3749, 7395), (4727, 5865)]