1978065

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:513

約数の個数: 24

約数和(自身を含む): 3467880

約数和(自身を除く): 1489815

約数列:

[1, 3, 5, 9, 15, 45, 113, 339, 389, 565, 1017, 1167, 1695, 1945, 3501, 5085, 5835, 17505, 43957, 131871, 219785, 395613, 659355, 1978065]

約数ペア:

[(1, 1978065), (3, 659355), (5, 395613), (9, 219785), (15, 131871), (45, 43957), (113, 17505), (339, 5835), (389, 5085), (565, 3501), (1017, 1945), (1167, 1695)]