161999280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3169}}^1$

素因数の和:3259

約数の個数: 120

約数和(自身を含む): 551884320

約数和(自身を除く): 389885040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 426, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1704, 2130, 2556, 2840, 3169, 3195, 3408, 4260, 5112, 5680, 6338, 6390, 8520, 9507, 10224, 12676, 12780, 15845, 17040, 19014, 25352, 25560, 28521, 31690, 38028, 47535, 50704, 51120, 57042, 63380, 76056, 95070, 114084, 126760, 142605, 152112, 190140, 224999, 228168, 253520, 285210, 380280, 449998, 456336, 570420, 674997, 760560, 899996, 1124995, 1140840, 1349994, 1799992, 2024991, 2249990, 2281680, 2699988, 3374985, 3599984, 4049982, 4499980, 5399976, 6749970, 8099964, 8999960, 10124955, 10799952, 13499940, 16199928, 17999920, 20249910, 26999880, 32399856, 40499820, 53999760, 80999640, 161999280]

約数ペア:

[(1, 161999280), (2, 80999640), (3, 53999760), (4, 40499820), (5, 32399856), (6, 26999880), (8, 20249910), (9, 17999920), (10, 16199928), (12, 13499940), (15, 10799952), (16, 10124955), (18, 8999960), (20, 8099964), (24, 6749970), (30, 5399976), (36, 4499980), (40, 4049982), (45, 3599984), (48, 3374985), (60, 2699988), (71, 2281680), (72, 2249990), (80, 2024991), (90, 1799992), (120, 1349994), (142, 1140840), (144, 1124995), (180, 899996), (213, 760560), (240, 674997), (284, 570420), (355, 456336), (360, 449998), (426, 380280), (568, 285210), (639, 253520), (710, 228168), (720, 224999), (852, 190140), (1065, 152112), (1136, 142605), (1278, 126760), (1420, 114084), (1704, 95070), (2130, 76056), (2556, 63380), (2840, 57042), (3169, 51120), (3195, 50704), (3408, 47535), (4260, 38028), (5112, 31690), (5680, 28521), (6338, 25560), (6390, 25352), (8520, 19014), (9507, 17040), (10224, 15845), (12676, 12780)]