18808787702920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3229}}^1\times {\mathrm{927541}}^1$

素因数の和:930938

約数の個数: 64

約数和(自身を含む): 42602560585200

約数和(自身を除く): 23793772882280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 3229, 6280, 6458, 12916, 16145, 25832, 32290, 64580, 129160, 506953, 927541, 1013906, 1855082, 2027812, 2534765, 3710164, 4055624, 4637705, 5069530, 7420328, 9275410, 10139060, 18550820, 20278120, 37101640, 145623937, 291247874, 582495748, 728119685, 1164991496, 1456239370, 2912478740, 2995029889, 5824957480, 5990059778, 11980119556, 14975149445, 23960239112, 29950298890, 59900597780, 119801195560, 470219692573, 940439385146, 1880878770292, 2351098462865, 3761757540584, 4702196925730, 9404393851460, 18808787702920]

約数ペア:

[(1, 18808787702920), (2, 9404393851460), (4, 4702196925730), (5, 3761757540584), (8, 2351098462865), (10, 1880878770292), (20, 940439385146), (40, 470219692573), (157, 119801195560), (314, 59900597780), (628, 29950298890), (785, 23960239112), (1256, 14975149445), (1570, 11980119556), (3140, 5990059778), (3229, 5824957480), (6280, 2995029889), (6458, 2912478740), (12916, 1456239370), (16145, 1164991496), (25832, 728119685), (32290, 582495748), (64580, 291247874), (129160, 145623937), (506953, 37101640), (927541, 20278120), (1013906, 18550820), (1855082, 10139060), (2027812, 9275410), (2534765, 7420328), (3710164, 5069530), (4055624, 4637705)]