20883840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:244

約数の個数: 128

約数和(自身を含む): 67932000

約数和(自身を除く): 47048160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 73, 80, 96, 120, 128, 146, 149, 160, 192, 219, 240, 292, 298, 320, 365, 384, 438, 447, 480, 584, 596, 640, 730, 745, 876, 894, 960, 1095, 1168, 1192, 1460, 1490, 1752, 1788, 1920, 2190, 2235, 2336, 2384, 2920, 2980, 3504, 3576, 4380, 4470, 4672, 4768, 5840, 5960, 7008, 7152, 8760, 8940, 9344, 9536, 10877, 11680, 11920, 14016, 14304, 17520, 17880, 19072, 21754, 23360, 23840, 28032, 28608, 32631, 35040, 35760, 43508, 46720, 47680, 54385, 57216, 65262, 70080, 71520, 87016, 95360, 108770, 130524, 140160, 143040, 163155, 174032, 217540, 261048, 286080, 326310, 348064, 435080, 522096, 652620, 696128, 870160, 1044192, 1305240, 1392256, 1740320, 2088384, 2610480, 3480640, 4176768, 5220960, 6961280, 10441920, 20883840]

約数ペア:

[(1, 20883840), (2, 10441920), (3, 6961280), (4, 5220960), (5, 4176768), (6, 3480640), (8, 2610480), (10, 2088384), (12, 1740320), (15, 1392256), (16, 1305240), (20, 1044192), (24, 870160), (30, 696128), (32, 652620), (40, 522096), (48, 435080), (60, 348064), (64, 326310), (73, 286080), (80, 261048), (96, 217540), (120, 174032), (128, 163155), (146, 143040), (149, 140160), (160, 130524), (192, 108770), (219, 95360), (240, 87016), (292, 71520), (298, 70080), (320, 65262), (365, 57216), (384, 54385), (438, 47680), (447, 46720), (480, 43508), (584, 35760), (596, 35040), (640, 32631), (730, 28608), (745, 28032), (876, 23840), (894, 23360), (960, 21754), (1095, 19072), (1168, 17880), (1192, 17520), (1460, 14304), (1490, 14016), (1752, 11920), (1788, 11680), (1920, 10877), (2190, 9536), (2235, 9344), (2336, 8940), (2384, 8760), (2920, 7152), (2980, 7008), (3504, 5960), (3576, 5840), (4380, 4768), (4470, 4672)]