311204740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{18371}}^1$

素因数の和:18409

約数の個数: 72

約数和(自身を含む): 821007936

約数和(自身を除く): 509803196

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 121, 140, 154, 220, 242, 308, 385, 484, 605, 770, 847, 1210, 1540, 1694, 2420, 3388, 4235, 8470, 16940, 18371, 36742, 73484, 91855, 128597, 183710, 202081, 257194, 367420, 404162, 514388, 642985, 808324, 1010405, 1285970, 1414567, 2020810, 2222891, 2571940, 2829134, 4041620, 4445782, 5658268, 7072835, 8891564, 11114455, 14145670, 15560237, 22228910, 28291340, 31120474, 44457820, 62240948, 77801185, 155602370, 311204740]

約数ペア:

[(1, 311204740), (2, 155602370), (4, 77801185), (5, 62240948), (7, 44457820), (10, 31120474), (11, 28291340), (14, 22228910), (20, 15560237), (22, 14145670), (28, 11114455), (35, 8891564), (44, 7072835), (55, 5658268), (70, 4445782), (77, 4041620), (110, 2829134), (121, 2571940), (140, 2222891), (154, 2020810), (220, 1414567), (242, 1285970), (308, 1010405), (385, 808324), (484, 642985), (605, 514388), (770, 404162), (847, 367420), (1210, 257194), (1540, 202081), (1694, 183710), (2420, 128597), (3388, 91855), (4235, 73484), (8470, 36742), (16940, 18371)]