64440720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{89501}}^1$

素因数の和:89520

約数の個数: 60

約数和(自身を含む): 216415836

約数和(自身を除く): 151975116

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, 89501, 179002, 268503, 358004, 447505, 537006, 716008, 805509, 895010, 1074012, 1342515, 1432016, 1611018, 1790020, 2148024, 2685030, 3222036, 3580040, 4027545, 4296048, 5370060, 6444072, 7160080, 8055090, 10740120, 12888144, 16110180, 21480240, 32220360, 64440720]

約数ペア:

[(1, 64440720), (2, 32220360), (3, 21480240), (4, 16110180), (5, 12888144), (6, 10740120), (8, 8055090), (9, 7160080), (10, 6444072), (12, 5370060), (15, 4296048), (16, 4027545), (18, 3580040), (20, 3222036), (24, 2685030), (30, 2148024), (36, 1790020), (40, 1611018), (45, 1432016), (48, 1342515), (60, 1074012), (72, 895010), (80, 805509), (90, 716008), (120, 537006), (144, 447505), (180, 358004), (240, 268503), (360, 179002), (720, 89501)]