19078420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{56113}}^1$

素因数の和:56139

約数の個数: 24

約数和(自身を含む): 42422184

約数和(自身を除く): 23343764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 56113, 112226, 224452, 280565, 561130, 953921, 1122260, 1907842, 3815684, 4769605, 9539210, 19078420]

約数ペア:

[(1, 19078420), (2, 9539210), (4, 4769605), (5, 3815684), (10, 1907842), (17, 1122260), (20, 953921), (34, 561130), (68, 280565), (85, 224452), (170, 112226), (340, 56113)]