77968720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:404

約数の個数: 80

約数和(自身を含む): 189273600

約数和(自身を除く): 111304880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 211, 248, 298, 310, 422, 496, 596, 620, 745, 844, 1055, 1192, 1240, 1490, 1688, 2110, 2384, 2480, 2980, 3376, 4220, 4619, 5960, 6541, 8440, 9238, 11920, 13082, 16880, 18476, 23095, 26164, 31439, 32705, 36952, 46190, 52328, 62878, 65410, 73904, 92380, 104656, 125756, 130820, 157195, 184760, 251512, 261640, 314390, 369520, 503024, 523280, 628780, 974609, 1257560, 1949218, 2515120, 3898436, 4873045, 7796872, 9746090, 15593744, 19492180, 38984360, 77968720]

約数ペア:

[(1, 77968720), (2, 38984360), (4, 19492180), (5, 15593744), (8, 9746090), (10, 7796872), (16, 4873045), (20, 3898436), (31, 2515120), (40, 1949218), (62, 1257560), (80, 974609), (124, 628780), (149, 523280), (155, 503024), (211, 369520), (248, 314390), (298, 261640), (310, 251512), (422, 184760), (496, 157195), (596, 130820), (620, 125756), (745, 104656), (844, 92380), (1055, 73904), (1192, 65410), (1240, 62878), (1490, 52328), (1688, 46190), (2110, 36952), (2384, 32705), (2480, 31439), (2980, 26164), (3376, 23095), (4220, 18476), (4619, 16880), (5960, 13082), (6541, 11920), (8440, 9238)]