641140016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{117511}}^1$

素因数の和:117561

約数の個数: 40

約数和(自身を含む): 1398862848

約数和(自身を除く): 757722832

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 5456, 117511, 235022, 470044, 940088, 1292621, 1880176, 2585242, 3642841, 5170484, 7285682, 10340968, 14571364, 20681936, 29142728, 40071251, 58285456, 80142502, 160285004, 320570008, 641140016]

約数ペア:

[(1, 641140016), (2, 320570008), (4, 160285004), (8, 80142502), (11, 58285456), (16, 40071251), (22, 29142728), (31, 20681936), (44, 14571364), (62, 10340968), (88, 7285682), (124, 5170484), (176, 3642841), (248, 2585242), (341, 1880176), (496, 1292621), (682, 940088), (1364, 470044), (2728, 235022), (5456, 117511)]