311993040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:389

約数の個数: 160

約数和(自身を含む): 997471872

約数和(自身を除く): 685478832

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 101, 120, 122, 183, 202, 211, 240, 244, 303, 305, 366, 404, 422, 488, 505, 606, 610, 633, 732, 808, 844, 915, 976, 1010, 1055, 1212, 1220, 1266, 1464, 1515, 1616, 1688, 1830, 2020, 2110, 2424, 2440, 2532, 2928, 3030, 3165, 3376, 3660, 4040, 4220, 4848, 4880, 5064, 6060, 6161, 6330, 7320, 8080, 8440, 10128, 12120, 12322, 12660, 12871, 14640, 16880, 18483, 21311, 24240, 24644, 25320, 25742, 30805, 36966, 38613, 42622, 49288, 50640, 51484, 61610, 63933, 64355, 73932, 77226, 85244, 92415, 98576, 102968, 106555, 123220, 127866, 128710, 147864, 154452, 170488, 184830, 193065, 205936, 213110, 246440, 255732, 257420, 295728, 308904, 319665, 340976, 369660, 386130, 426220, 492880, 511464, 514840, 617808, 639330, 739320, 772260, 852440, 1022928, 1029680, 1278660, 1299971, 1478640, 1544520, 1704880, 2557320, 2599942, 3089040, 3899913, 5114640, 5199884, 6499855, 7799826, 10399768, 12999710, 15599652, 19499565, 20799536, 25999420, 31199304, 38999130, 51998840, 62398608, 77998260, 103997680, 155996520, 311993040]

約数ペア:

[(1, 311993040), (2, 155996520), (3, 103997680), (4, 77998260), (5, 62398608), (6, 51998840), (8, 38999130), (10, 31199304), (12, 25999420), (15, 20799536), (16, 19499565), (20, 15599652), (24, 12999710), (30, 10399768), (40, 7799826), (48, 6499855), (60, 5199884), (61, 5114640), (80, 3899913), (101, 3089040), (120, 2599942), (122, 2557320), (183, 1704880), (202, 1544520), (211, 1478640), (240, 1299971), (244, 1278660), (303, 1029680), (305, 1022928), (366, 852440), (404, 772260), (422, 739320), (488, 639330), (505, 617808), (606, 514840), (610, 511464), (633, 492880), (732, 426220), (808, 386130), (844, 369660), (915, 340976), (976, 319665), (1010, 308904), (1055, 295728), (1212, 257420), (1220, 255732), (1266, 246440), (1464, 213110), (1515, 205936), (1616, 193065), (1688, 184830), (1830, 170488), (2020, 154452), (2110, 147864), (2424, 128710), (2440, 127866), (2532, 123220), (2928, 106555), (3030, 102968), (3165, 98576), (3376, 92415), (3660, 85244), (4040, 77226), (4220, 73932), (4848, 64355), (4880, 63933), (5064, 61610), (6060, 51484), (6161, 50640), (6330, 49288), (7320, 42622), (8080, 38613), (8440, 36966), (10128, 30805), (12120, 25742), (12322, 25320), (12660, 24644), (12871, 24240), (14640, 21311), (16880, 18483)]