18820340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{101}}^1$

素因数の和:150

約数の個数: 96

約数和(自身を含む): 50174208

約数和(自身を除く): 31353868

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 101, 110, 121, 140, 154, 202, 220, 242, 308, 385, 404, 484, 505, 605, 707, 770, 847, 1010, 1111, 1210, 1331, 1414, 1540, 1694, 2020, 2222, 2420, 2662, 2828, 3388, 3535, 4235, 4444, 5324, 5555, 6655, 7070, 7777, 8470, 9317, 11110, 12221, 13310, 14140, 15554, 16940, 18634, 22220, 24442, 26620, 31108, 37268, 38885, 46585, 48884, 61105, 77770, 85547, 93170, 122210, 134431, 155540, 171094, 186340, 244420, 268862, 342188, 427735, 537724, 672155, 855470, 941017, 1344310, 1710940, 1882034, 2688620, 3764068, 4705085, 9410170, 18820340]

約数ペア:

[(1, 18820340), (2, 9410170), (4, 4705085), (5, 3764068), (7, 2688620), (10, 1882034), (11, 1710940), (14, 1344310), (20, 941017), (22, 855470), (28, 672155), (35, 537724), (44, 427735), (55, 342188), (70, 268862), (77, 244420), (101, 186340), (110, 171094), (121, 155540), (140, 134431), (154, 122210), (202, 93170), (220, 85547), (242, 77770), (308, 61105), (385, 48884), (404, 46585), (484, 38885), (505, 37268), (605, 31108), (707, 26620), (770, 24442), (847, 22220), (1010, 18634), (1111, 16940), (1210, 15554), (1331, 14140), (1414, 13310), (1540, 12221), (1694, 11110), (2020, 9317), (2222, 8470), (2420, 7777), (2662, 7070), (2828, 6655), (3388, 5555), (3535, 5324), (4235, 4444)]