190717210

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{421}}^1\times {\mathrm{509}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 348656400

約数和(自身を除く): 157939190

約数列:

[1, 2, 5, 10, 89, 178, 421, 445, 509, 842, 890, 1018, 2105, 2545, 4210, 5090, 37469, 45301, 74938, 90602, 187345, 214289, 226505, 374690, 428578, 453010, 1071445, 2142890, 19071721, 38143442, 95358605, 190717210]

約数ペア:

[(1, 190717210), (2, 95358605), (5, 38143442), (10, 19071721), (89, 2142890), (178, 1071445), (421, 453010), (445, 428578), (509, 374690), (842, 226505), (890, 214289), (1018, 187345), (2105, 90602), (2545, 74938), (4210, 45301), (5090, 37469)]