1981900080

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{2752639}}^1$

素因数の和:2752658

約数の個数: 60

約数和(自身を含む): 6655883520

約数和(自身を除く): 4673983440

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, 2752639, 5505278, 8257917, 11010556, 13763195, 16515834, 22021112, 24773751, 27526390, 33031668, 41289585, 44042224, 49547502, 55052780, 66063336, 82579170, 99095004, 110105560, 123868755, 132126672, 165158340, 198190008, 220211120, 247737510, 330316680, 396380016, 495475020, 660633360, 990950040, 1981900080]

約数ペア:

[(1, 1981900080), (2, 990950040), (3, 660633360), (4, 495475020), (5, 396380016), (6, 330316680), (8, 247737510), (9, 220211120), (10, 198190008), (12, 165158340), (15, 132126672), (16, 123868755), (18, 110105560), (20, 99095004), (24, 82579170), (30, 66063336), (36, 55052780), (40, 49547502), (45, 44042224), (48, 41289585), (60, 33031668), (72, 27526390), (80, 24773751), (90, 22021112), (120, 16515834), (144, 13763195), (180, 11010556), (240, 8257917), (360, 5505278), (720, 2752639)]