128370460

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{337817}}^1$

素因数の和:337845

約数の個数: 24

約数和(自身を含む): 283767120

約数和(自身を除く): 155396660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 337817, 675634, 1351268, 1689085, 3378170, 6418523, 6756340, 12837046, 25674092, 32092615, 64185230, 128370460]

約数ペア:

[(1, 128370460), (2, 64185230), (4, 32092615), (5, 25674092), (10, 12837046), (19, 6756340), (20, 6418523), (38, 3378170), (76, 1689085), (95, 1351268), (190, 675634), (380, 337817)]