28681172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 56297472

約数和(自身を除く): 27616300

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 101, 127, 172, 202, 254, 404, 508, 559, 1118, 1313, 1651, 2236, 2626, 3302, 4343, 5252, 5461, 6604, 8686, 10922, 12827, 17372, 21844, 25654, 51308, 56459, 70993, 112918, 141986, 166751, 225836, 283972, 333502, 551561, 667004, 1103122, 2206244, 7170293, 14340586, 28681172]

約数ペア:

[(1, 28681172), (2, 14340586), (4, 7170293), (13, 2206244), (26, 1103122), (43, 667004), (52, 551561), (86, 333502), (101, 283972), (127, 225836), (172, 166751), (202, 141986), (254, 112918), (404, 70993), (508, 56459), (559, 51308), (1118, 25654), (1313, 21844), (1651, 17372), (2236, 12827), (2626, 10922), (3302, 8686), (4343, 6604), (5252, 5461)]