647999280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2267}}^1$

素因数の和:2683

約数の個数: 120

約数和(自身を含む): 2182641552

約数和(自身を除く): 1534642272

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 397, 720, 794, 1191, 1588, 1985, 2267, 2382, 3176, 3573, 3970, 4534, 4764, 5955, 6352, 6801, 7146, 7940, 9068, 9528, 11335, 11910, 13602, 14292, 15880, 17865, 18136, 19056, 20403, 22670, 23820, 27204, 28584, 31760, 34005, 35730, 36272, 40806, 45340, 47640, 54408, 57168, 68010, 71460, 81612, 90680, 95280, 102015, 108816, 136020, 142920, 163224, 181360, 204030, 272040, 285840, 326448, 408060, 544080, 816120, 899999, 1632240, 1799998, 2699997, 3599996, 4499995, 5399994, 7199992, 8099991, 8999990, 10799988, 13499985, 14399984, 16199982, 17999980, 21599976, 26999970, 32399964, 35999960, 40499955, 43199952, 53999940, 64799928, 71999920, 80999910, 107999880, 129599856, 161999820, 215999760, 323999640, 647999280]

約数ペア:

[(1, 647999280), (2, 323999640), (3, 215999760), (4, 161999820), (5, 129599856), (6, 107999880), (8, 80999910), (9, 71999920), (10, 64799928), (12, 53999940), (15, 43199952), (16, 40499955), (18, 35999960), (20, 32399964), (24, 26999970), (30, 21599976), (36, 17999980), (40, 16199982), (45, 14399984), (48, 13499985), (60, 10799988), (72, 8999990), (80, 8099991), (90, 7199992), (120, 5399994), (144, 4499995), (180, 3599996), (240, 2699997), (360, 1799998), (397, 1632240), (720, 899999), (794, 816120), (1191, 544080), (1588, 408060), (1985, 326448), (2267, 285840), (2382, 272040), (3176, 204030), (3573, 181360), (3970, 163224), (4534, 142920), (4764, 136020), (5955, 108816), (6352, 102015), (6801, 95280), (7146, 90680), (7940, 81612), (9068, 71460), (9528, 68010), (11335, 57168), (11910, 54408), (13602, 47640), (14292, 45340), (15880, 40806), (17865, 36272), (18136, 35730), (19056, 34005), (20403, 31760), (22670, 28584), (23820, 27204)]