19882560

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:308

約数の個数: 112

約数和(自身を含む): 64008000

約数和(自身を除く): 44125440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 139, 149, 160, 192, 240, 278, 298, 320, 417, 447, 480, 556, 596, 695, 745, 834, 894, 960, 1112, 1192, 1390, 1490, 1668, 1788, 2085, 2224, 2235, 2384, 2780, 2980, 3336, 3576, 4170, 4448, 4470, 4768, 5560, 5960, 6672, 7152, 8340, 8896, 8940, 9536, 11120, 11920, 13344, 14304, 16680, 17880, 20711, 22240, 23840, 26688, 28608, 33360, 35760, 41422, 44480, 47680, 62133, 66720, 71520, 82844, 103555, 124266, 133440, 143040, 165688, 207110, 248532, 310665, 331376, 414220, 497064, 621330, 662752, 828440, 994128, 1242660, 1325504, 1656880, 1988256, 2485320, 3313760, 3976512, 4970640, 6627520, 9941280, 19882560]

約数ペア:

[(1, 19882560), (2, 9941280), (3, 6627520), (4, 4970640), (5, 3976512), (6, 3313760), (8, 2485320), (10, 1988256), (12, 1656880), (15, 1325504), (16, 1242660), (20, 994128), (24, 828440), (30, 662752), (32, 621330), (40, 497064), (48, 414220), (60, 331376), (64, 310665), (80, 248532), (96, 207110), (120, 165688), (139, 143040), (149, 133440), (160, 124266), (192, 103555), (240, 82844), (278, 71520), (298, 66720), (320, 62133), (417, 47680), (447, 44480), (480, 41422), (556, 35760), (596, 33360), (695, 28608), (745, 26688), (834, 23840), (894, 22240), (960, 20711), (1112, 17880), (1192, 16680), (1390, 14304), (1490, 13344), (1668, 11920), (1788, 11120), (2085, 9536), (2224, 8940), (2235, 8896), (2384, 8340), (2780, 7152), (2980, 6672), (3336, 5960), (3576, 5560), (4170, 4768), (4448, 4470)]