138802420

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{61417}}^1$

素因数の和:61539

約数の個数: 24

約数和(自身を含む): 294069384

約数和(自身を除く): 155266964

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 61417, 122834, 245668, 307085, 614170, 1228340, 6940121, 13880242, 27760484, 34700605, 69401210, 138802420]

約数ペア:

[(1, 138802420), (2, 69401210), (4, 34700605), (5, 27760484), (10, 13880242), (20, 6940121), (113, 1228340), (226, 614170), (452, 307085), (565, 245668), (1130, 122834), (2260, 61417)]