21605520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90023}}^1$

素因数の和:90039

約数の個数: 40

約数和(自身を含む): 66977856

約数和(自身を除く): 45372336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90023, 180046, 270069, 360092, 450115, 540138, 720184, 900230, 1080276, 1350345, 1440368, 1800460, 2160552, 2700690, 3600920, 4321104, 5401380, 7201840, 10802760, 21605520]

約数ペア:

[(1, 21605520), (2, 10802760), (3, 7201840), (4, 5401380), (5, 4321104), (6, 3600920), (8, 2700690), (10, 2160552), (12, 1800460), (15, 1440368), (16, 1350345), (20, 1080276), (24, 900230), (30, 720184), (40, 540138), (48, 450115), (60, 360092), (80, 270069), (120, 180046), (240, 90023)]