20184984320

素因数分解:

$2^8\times 5^1\times {\mathrm{43}}^1\times {\mathrm{366733}}^1$

素因数の和:366797

約数の個数: 72

約数和(自身を含む): 49473883536

約数和(自身を除く): 29288899216

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 640, 688, 860, 1280, 1376, 1720, 2752, 3440, 5504, 6880, 11008, 13760, 27520, 55040, 366733, 733466, 1466932, 1833665, 2933864, 3667330, 5867728, 7334660, 11735456, 14669320, 15769519, 23470912, 29338640, 31539038, 46941824, 58677280, 63078076, 78847595, 93883648, 117354560, 126156152, 157695190, 234709120, 252312304, 315390380, 469418240, 504624608, 630780760, 1009249216, 1261561520, 2018498432, 2523123040, 4036996864, 5046246080, 10092492160, 20184984320]

約数ペア:

[(1, 20184984320), (2, 10092492160), (4, 5046246080), (5, 4036996864), (8, 2523123040), (10, 2018498432), (16, 1261561520), (20, 1009249216), (32, 630780760), (40, 504624608), (43, 469418240), (64, 315390380), (80, 252312304), (86, 234709120), (128, 157695190), (160, 126156152), (172, 117354560), (215, 93883648), (256, 78847595), (320, 63078076), (344, 58677280), (430, 46941824), (640, 31539038), (688, 29338640), (860, 23470912), (1280, 15769519), (1376, 14669320), (1720, 11735456), (2752, 7334660), (3440, 5867728), (5504, 3667330), (6880, 2933864), (11008, 1833665), (13760, 1466932), (27520, 733466), (55040, 366733)]