13381840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3559}}^1$

素因数の和:3619

約数の個数: 40

約数和(自身を含む): 31783680

約数和(自身を除く): 18401840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3559, 3760, 7118, 14236, 17795, 28472, 35590, 56944, 71180, 142360, 167273, 284720, 334546, 669092, 836365, 1338184, 1672730, 2676368, 3345460, 6690920, 13381840]

約数ペア:

[(1, 13381840), (2, 6690920), (4, 3345460), (5, 2676368), (8, 1672730), (10, 1338184), (16, 836365), (20, 669092), (40, 334546), (47, 284720), (80, 167273), (94, 142360), (188, 71180), (235, 56944), (376, 35590), (470, 28472), (752, 17795), (940, 14236), (1880, 7118), (3559, 3760)]