248927140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{161641}}^1$

素因数の和:161668

約数の個数: 48

約数和(自身を含む): 651740544

約数和(自身を除く): 402813404

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 161641, 323282, 646564, 808205, 1131487, 1616410, 1778051, 2262974, 3232820, 3556102, 4525948, 5657435, 7112204, 8890255, 11314870, 12446357, 17780510, 22629740, 24892714, 35561020, 49785428, 62231785, 124463570, 248927140]

約数ペア:

[(1, 248927140), (2, 124463570), (4, 62231785), (5, 49785428), (7, 35561020), (10, 24892714), (11, 22629740), (14, 17780510), (20, 12446357), (22, 11314870), (28, 8890255), (35, 7112204), (44, 5657435), (55, 4525948), (70, 3556102), (77, 3232820), (110, 2262974), (140, 1778051), (154, 1616410), (220, 1131487), (308, 808205), (385, 646564), (770, 323282), (1540, 161641)]