30780720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{42751}}^1$

素因数の和:42770

約数の個数: 60

約数和(自身を含む): 103374336

約数和(自身を除く): 72593616

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, 42751, 85502, 128253, 171004, 213755, 256506, 342008, 384759, 427510, 513012, 641265, 684016, 769518, 855020, 1026024, 1282530, 1539036, 1710040, 1923795, 2052048, 2565060, 3078072, 3420080, 3847590, 5130120, 6156144, 7695180, 10260240, 15390360, 30780720]

約数ペア:

[(1, 30780720), (2, 15390360), (3, 10260240), (4, 7695180), (5, 6156144), (6, 5130120), (8, 3847590), (9, 3420080), (10, 3078072), (12, 2565060), (15, 2052048), (16, 1923795), (18, 1710040), (20, 1539036), (24, 1282530), (30, 1026024), (36, 855020), (40, 769518), (45, 684016), (48, 641265), (60, 513012), (72, 427510), (80, 384759), (90, 342008), (120, 256506), (144, 213755), (180, 171004), (240, 128253), (360, 85502), (720, 42751)]