215571520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{701}}^1$

素因数の和:780

約数の個数: 84

約数和(自身を含む): 531179532

約数和(自身を除く): 315608012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 701, 961, 992, 1240, 1402, 1922, 1984, 2480, 2804, 3505, 3844, 4805, 4960, 5608, 7010, 7688, 9610, 9920, 11216, 14020, 15376, 19220, 21731, 22432, 28040, 30752, 38440, 43462, 44864, 56080, 61504, 76880, 86924, 108655, 112160, 153760, 173848, 217310, 224320, 307520, 347696, 434620, 673661, 695392, 869240, 1347322, 1390784, 1738480, 2694644, 3368305, 3476960, 5389288, 6736610, 6953920, 10778576, 13473220, 21557152, 26946440, 43114304, 53892880, 107785760, 215571520]

約数ペア:

[(1, 215571520), (2, 107785760), (4, 53892880), (5, 43114304), (8, 26946440), (10, 21557152), (16, 13473220), (20, 10778576), (31, 6953920), (32, 6736610), (40, 5389288), (62, 3476960), (64, 3368305), (80, 2694644), (124, 1738480), (155, 1390784), (160, 1347322), (248, 869240), (310, 695392), (320, 673661), (496, 434620), (620, 347696), (701, 307520), (961, 224320), (992, 217310), (1240, 173848), (1402, 153760), (1922, 112160), (1984, 108655), (2480, 86924), (2804, 76880), (3505, 61504), (3844, 56080), (4805, 44864), (4960, 43462), (5608, 38440), (7010, 30752), (7688, 28040), (9610, 22432), (9920, 21731), (11216, 19220), (14020, 15376)]