15892940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1861}}^1$

素因数の和:1938

約数の個数: 48

約数和(自身を含む): 38789184

約数和(自身を除く): 22896244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 1861, 2135, 3722, 4270, 7444, 8540, 9305, 13027, 18610, 26054, 37220, 52108, 65135, 113521, 130270, 227042, 260540, 454084, 567605, 794647, 1135210, 1589294, 2270420, 3178588, 3973235, 7946470, 15892940]

約数ペア:

[(1, 15892940), (2, 7946470), (4, 3973235), (5, 3178588), (7, 2270420), (10, 1589294), (14, 1135210), (20, 794647), (28, 567605), (35, 454084), (61, 260540), (70, 227042), (122, 130270), (140, 113521), (244, 65135), (305, 52108), (427, 37220), (610, 26054), (854, 18610), (1220, 13027), (1708, 9305), (1861, 8540), (2135, 7444), (3722, 4270)]