15709540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^2$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 41541696

約数和(自身を除く): 25832156

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 140, 154, 202, 220, 308, 385, 404, 505, 707, 770, 1010, 1111, 1414, 1540, 2020, 2222, 2828, 3535, 4444, 5555, 7070, 7777, 10201, 11110, 14140, 15554, 20402, 22220, 31108, 38885, 40804, 51005, 71407, 77770, 102010, 112211, 142814, 155540, 204020, 224422, 285628, 357035, 448844, 561055, 714070, 785477, 1122110, 1428140, 1570954, 2244220, 3141908, 3927385, 7854770, 15709540]

約数ペア:

[(1, 15709540), (2, 7854770), (4, 3927385), (5, 3141908), (7, 2244220), (10, 1570954), (11, 1428140), (14, 1122110), (20, 785477), (22, 714070), (28, 561055), (35, 448844), (44, 357035), (55, 285628), (70, 224422), (77, 204020), (101, 155540), (110, 142814), (140, 112211), (154, 102010), (202, 77770), (220, 71407), (308, 51005), (385, 40804), (404, 38885), (505, 31108), (707, 22220), (770, 20402), (1010, 15554), (1111, 14140), (1414, 11110), (1540, 10201), (2020, 7777), (2222, 7070), (2828, 5555), (3535, 4444)]