19470490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 39014136

約数和(自身を除く): 19543646

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 169, 205, 281, 338, 410, 533, 562, 845, 1066, 1405, 1690, 2665, 2810, 3653, 5330, 6929, 7306, 11521, 13858, 18265, 23042, 34645, 36530, 47489, 57605, 69290, 94978, 115210, 149773, 237445, 299546, 474890, 748865, 1497730, 1947049, 3894098, 9735245, 19470490]

約数ペア:

[(1, 19470490), (2, 9735245), (5, 3894098), (10, 1947049), (13, 1497730), (26, 748865), (41, 474890), (65, 299546), (82, 237445), (130, 149773), (169, 115210), (205, 94978), (281, 69290), (338, 57605), (410, 47489), (533, 36530), (562, 34645), (845, 23042), (1066, 18265), (1405, 13858), (1690, 11521), (2665, 7306), (2810, 6929), (3653, 5330)]