161221140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{895673}}^1$

素因数の和:895688

約数の個数: 36

約数和(自身を含む): 489038004

約数和(自身を除く): 327816864

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 895673, 1791346, 2687019, 3582692, 4478365, 5374038, 8061057, 8956730, 10748076, 13435095, 16122114, 17913460, 26870190, 32244228, 40305285, 53740380, 80610570, 161221140]

約数ペア:

[(1, 161221140), (2, 80610570), (3, 53740380), (4, 40305285), (5, 32244228), (6, 26870190), (9, 17913460), (10, 16122114), (12, 13435095), (15, 10748076), (18, 8956730), (20, 8061057), (30, 5374038), (36, 4478365), (45, 3582692), (60, 2687019), (90, 1791346), (180, 895673)]