64800720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{90001}}^1$

素因数の和:90020

約数の個数: 60

約数和(自身を含む): 217624836

約数和(自身を除く): 152824116

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, 90001, 180002, 270003, 360004, 450005, 540006, 720008, 810009, 900010, 1080012, 1350015, 1440016, 1620018, 1800020, 2160024, 2700030, 3240036, 3600040, 4050045, 4320048, 5400060, 6480072, 7200080, 8100090, 10800120, 12960144, 16200180, 21600240, 32400360, 64800720]

約数ペア:

[(1, 64800720), (2, 32400360), (3, 21600240), (4, 16200180), (5, 12960144), (6, 10800120), (8, 8100090), (9, 7200080), (10, 6480072), (12, 5400060), (15, 4320048), (16, 4050045), (18, 3600040), (20, 3240036), (24, 2700030), (30, 2160024), (36, 1800020), (40, 1620018), (45, 1440016), (48, 1350015), (60, 1080012), (72, 900010), (80, 810009), (90, 720008), (120, 540006), (144, 450005), (180, 360004), (240, 270003), (360, 180002), (720, 90001)]