78459220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5441}}^1$

素因数の和:5560

約数の個数: 48

約数和(自身を含む): 190165248

約数和(自身を除く): 111706028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 5441, 7210, 10882, 14420, 21764, 27205, 38087, 54410, 76174, 108820, 152348, 190435, 380870, 560423, 761740, 1120846, 2241692, 2802115, 3922961, 5604230, 7845922, 11208460, 15691844, 19614805, 39229610, 78459220]

約数ペア:

[(1, 78459220), (2, 39229610), (4, 19614805), (5, 15691844), (7, 11208460), (10, 7845922), (14, 5604230), (20, 3922961), (28, 2802115), (35, 2241692), (70, 1120846), (103, 761740), (140, 560423), (206, 380870), (412, 190435), (515, 152348), (721, 108820), (1030, 76174), (1442, 54410), (2060, 38087), (2884, 27205), (3605, 21764), (5441, 14420), (7210, 10882)]