129599280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{179999}}^1$

素因数の和:180018

約数の個数: 60

約数和(自身を含む): 435240000

約数和(自身を除く): 305640720

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, 720, 179999, 359998, 539997, 719996, 899995, 1079994, 1439992, 1619991, 1799990, 2159988, 2699985, 2879984, 3239982, 3599980, 4319976, 5399970, 6479964, 7199960, 8099955, 8639952, 10799940, 12959928, 14399920, 16199910, 21599880, 25919856, 32399820, 43199760, 64799640, 129599280]

約数ペア:

[(1, 129599280), (2, 64799640), (3, 43199760), (4, 32399820), (5, 25919856), (6, 21599880), (8, 16199910), (9, 14399920), (10, 12959928), (12, 10799940), (15, 8639952), (16, 8099955), (18, 7199960), (20, 6479964), (24, 5399970), (30, 4319976), (36, 3599980), (40, 3239982), (45, 2879984), (48, 2699985), (60, 2159988), (72, 1799990), (80, 1619991), (90, 1439992), (120, 1079994), (144, 899995), (180, 719996), (240, 539997), (360, 359998), (720, 179999)]