15490420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{173}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 36934632

約数和(自身を除く): 21444212

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 121, 148, 173, 185, 220, 242, 346, 370, 407, 484, 605, 692, 740, 814, 865, 1210, 1628, 1730, 1903, 2035, 2420, 3460, 3806, 4070, 4477, 6401, 7612, 8140, 8954, 9515, 12802, 17908, 19030, 20933, 22385, 25604, 32005, 38060, 41866, 44770, 64010, 70411, 83732, 89540, 104665, 128020, 140822, 209330, 281644, 352055, 418660, 704110, 774521, 1408220, 1549042, 3098084, 3872605, 7745210, 15490420]

約数ペア:

[(1, 15490420), (2, 7745210), (4, 3872605), (5, 3098084), (10, 1549042), (11, 1408220), (20, 774521), (22, 704110), (37, 418660), (44, 352055), (55, 281644), (74, 209330), (110, 140822), (121, 128020), (148, 104665), (173, 89540), (185, 83732), (220, 70411), (242, 64010), (346, 44770), (370, 41866), (407, 38060), (484, 32005), (605, 25604), (692, 22385), (740, 20933), (814, 19030), (865, 17908), (1210, 12802), (1628, 9515), (1730, 8954), (1903, 8140), (2035, 7612), (2420, 6401), (3460, 4477), (3806, 4070)]