20305120

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 96

約数和(自身を含む): 53343360

約数和(自身を除く): 33038240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 83, 88, 110, 139, 160, 166, 176, 220, 278, 332, 352, 415, 440, 556, 664, 695, 830, 880, 913, 1112, 1328, 1390, 1529, 1660, 1760, 1826, 2224, 2656, 2780, 3058, 3320, 3652, 4448, 4565, 5560, 6116, 6640, 7304, 7645, 9130, 11120, 11537, 12232, 13280, 14608, 15290, 18260, 22240, 23074, 24464, 29216, 30580, 36520, 46148, 48928, 57685, 61160, 73040, 92296, 115370, 122320, 126907, 146080, 184592, 230740, 244640, 253814, 369184, 461480, 507628, 634535, 922960, 1015256, 1269070, 1845920, 2030512, 2538140, 4061024, 5076280, 10152560, 20305120]

約数ペア:

[(1, 20305120), (2, 10152560), (4, 5076280), (5, 4061024), (8, 2538140), (10, 2030512), (11, 1845920), (16, 1269070), (20, 1015256), (22, 922960), (32, 634535), (40, 507628), (44, 461480), (55, 369184), (80, 253814), (83, 244640), (88, 230740), (110, 184592), (139, 146080), (160, 126907), (166, 122320), (176, 115370), (220, 92296), (278, 73040), (332, 61160), (352, 57685), (415, 48928), (440, 46148), (556, 36520), (664, 30580), (695, 29216), (830, 24464), (880, 23074), (913, 22240), (1112, 18260), (1328, 15290), (1390, 14608), (1529, 13280), (1660, 12232), (1760, 11537), (1826, 11120), (2224, 9130), (2656, 7645), (2780, 7304), (3058, 6640), (3320, 6116), (3652, 5560), (4448, 4565)]