187236400420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{105188989}}^1$

素因数の和:105189087

約数の個数: 24

約数和(自身を含む): 397614382200

約数和(自身を除く): 210377981780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 105188989, 210377978, 420755956, 525944945, 1051889890, 2103779780, 9361820021, 18723640042, 37447280084, 46809100105, 93618200210, 187236400420]

約数ペア:

[(1, 187236400420), (2, 93618200210), (4, 46809100105), (5, 37447280084), (10, 18723640042), (20, 9361820021), (89, 2103779780), (178, 1051889890), (356, 525944945), (445, 420755956), (890, 210377978), (1780, 105188989)]