20121247920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1327}}^1\times {\mathrm{63179}}^1$

素因数の和:64522

約数の個数: 80

約数和(自身を含む): 62423861760

約数和(自身を除く): 42302613840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1327, 2654, 3981, 5308, 6635, 7962, 10616, 13270, 15924, 19905, 21232, 26540, 31848, 39810, 53080, 63179, 63696, 79620, 106160, 126358, 159240, 189537, 252716, 315895, 318480, 379074, 505432, 631790, 758148, 947685, 1010864, 1263580, 1516296, 1895370, 2527160, 3032592, 3790740, 5054320, 7581480, 15162960, 83838533, 167677066, 251515599, 335354132, 419192665, 503031198, 670708264, 838385330, 1006062396, 1257577995, 1341416528, 1676770660, 2012124792, 2515155990, 3353541320, 4024249584, 5030311980, 6707082640, 10060623960, 20121247920]

約数ペア:

[(1, 20121247920), (2, 10060623960), (3, 6707082640), (4, 5030311980), (5, 4024249584), (6, 3353541320), (8, 2515155990), (10, 2012124792), (12, 1676770660), (15, 1341416528), (16, 1257577995), (20, 1006062396), (24, 838385330), (30, 670708264), (40, 503031198), (48, 419192665), (60, 335354132), (80, 251515599), (120, 167677066), (240, 83838533), (1327, 15162960), (2654, 7581480), (3981, 5054320), (5308, 3790740), (6635, 3032592), (7962, 2527160), (10616, 1895370), (13270, 1516296), (15924, 1263580), (19905, 1010864), (21232, 947685), (26540, 758148), (31848, 631790), (39810, 505432), (53080, 379074), (63179, 318480), (63696, 315895), (79620, 252716), (106160, 189537), (126358, 159240)]