19492880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1303}}^1$

素因数の和:1344

約数の個数: 80

約数和(自身を含む): 52389504

約数和(自身を除く): 32896624

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1303, 1360, 1496, 1870, 2606, 2992, 3740, 5212, 6515, 7480, 10424, 13030, 14333, 14960, 20848, 22151, 26060, 28666, 44302, 52120, 57332, 71665, 88604, 104240, 110755, 114664, 143330, 177208, 221510, 229328, 243661, 286660, 354416, 443020, 487322, 573320, 886040, 974644, 1146640, 1218305, 1772080, 1949288, 2436610, 3898576, 4873220, 9746440, 19492880]

約数ペア:

[(1, 19492880), (2, 9746440), (4, 4873220), (5, 3898576), (8, 2436610), (10, 1949288), (11, 1772080), (16, 1218305), (17, 1146640), (20, 974644), (22, 886040), (34, 573320), (40, 487322), (44, 443020), (55, 354416), (68, 286660), (80, 243661), (85, 229328), (88, 221510), (110, 177208), (136, 143330), (170, 114664), (176, 110755), (187, 104240), (220, 88604), (272, 71665), (340, 57332), (374, 52120), (440, 44302), (680, 28666), (748, 26060), (880, 22151), (935, 20848), (1303, 14960), (1360, 14333), (1496, 13030), (1870, 10424), (2606, 7480), (2992, 6515), (3740, 5212)]