20890521904

素因数分解:

$2^4\times 7^1\times {\mathrm{5569}}^1\times {\mathrm{33493}}^1$

素因数の和:39077

約数の個数: 40

約数和(自身を含む): 46267271840

約数和(自身を除く): 25376749936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 5569, 11138, 22276, 33493, 38983, 44552, 66986, 77966, 89104, 133972, 155932, 234451, 267944, 311864, 468902, 535888, 623728, 937804, 1875608, 3751216, 186522517, 373045034, 746090068, 1305657619, 1492180136, 2611315238, 2984360272, 5222630476, 10445260952, 20890521904]

約数ペア:

[(1, 20890521904), (2, 10445260952), (4, 5222630476), (7, 2984360272), (8, 2611315238), (14, 1492180136), (16, 1305657619), (28, 746090068), (56, 373045034), (112, 186522517), (5569, 3751216), (11138, 1875608), (22276, 937804), (33493, 623728), (38983, 535888), (44552, 468902), (66986, 311864), (77966, 267944), (89104, 234451), (133972, 155932)]