19717890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1607}}^1$

素因数の和:2026

約数の個数: 32

約数和(自身を含む): 47468160

約数和(自身を除く): 27750270

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 409, 818, 1227, 1607, 2045, 2454, 3214, 4090, 4821, 6135, 8035, 9642, 12270, 16070, 24105, 48210, 657263, 1314526, 1971789, 3286315, 3943578, 6572630, 9858945, 19717890]

約数ペア:

[(1, 19717890), (2, 9858945), (3, 6572630), (5, 3943578), (6, 3286315), (10, 1971789), (15, 1314526), (30, 657263), (409, 48210), (818, 24105), (1227, 16070), (1607, 12270), (2045, 9642), (2454, 8035), (3214, 6135), (4090, 4821)]