20283172

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{541}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 44192512

約数和(自身を除く): 23909340

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 103, 182, 206, 364, 412, 541, 721, 1082, 1339, 1442, 2164, 2678, 2884, 3787, 5356, 7033, 7574, 9373, 14066, 15148, 18746, 28132, 37492, 49231, 55723, 98462, 111446, 196924, 222892, 390061, 724399, 780122, 1448798, 1560244, 2897596, 5070793, 10141586, 20283172]

約数ペア:

[(1, 20283172), (2, 10141586), (4, 5070793), (7, 2897596), (13, 1560244), (14, 1448798), (26, 780122), (28, 724399), (52, 390061), (91, 222892), (103, 196924), (182, 111446), (206, 98462), (364, 55723), (412, 49231), (541, 37492), (721, 28132), (1082, 18746), (1339, 15148), (1442, 14066), (2164, 9373), (2678, 7574), (2884, 7033), (3787, 5356)]