258678890

素因数分解:

$2^1\times 5^1\times {\mathrm{509}}^1\times {\mathrm{50821}}^1$

素因数の和:51337

約数の個数: 16

約数和(自身を含む): 466545960

約数和(自身を除く): 207867070

約数列:

[1, 2, 5, 10, 509, 1018, 2545, 5090, 50821, 101642, 254105, 508210, 25867889, 51735778, 129339445, 258678890]

約数ペア:

[(1, 258678890), (2, 129339445), (5, 51735778), (10, 25867889), (509, 508210), (1018, 254105), (2545, 101642), (5090, 50821)]