81894340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{2371}}^1$

素因数の和:2548

約数の個数: 48

約数和(自身を含む): 188887104

約数和(自身を除く): 106992764

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 628, 785, 1570, 1727, 2371, 3140, 3454, 4742, 6908, 8635, 9484, 11855, 17270, 23710, 26081, 34540, 47420, 52162, 104324, 130405, 260810, 372247, 521620, 744494, 1488988, 1861235, 3722470, 4094717, 7444940, 8189434, 16378868, 20473585, 40947170, 81894340]

約数ペア:

[(1, 81894340), (2, 40947170), (4, 20473585), (5, 16378868), (10, 8189434), (11, 7444940), (20, 4094717), (22, 3722470), (44, 1861235), (55, 1488988), (110, 744494), (157, 521620), (220, 372247), (314, 260810), (628, 130405), (785, 104324), (1570, 52162), (1727, 47420), (2371, 34540), (3140, 26081), (3454, 23710), (4742, 17270), (6908, 11855), (8635, 9484)]