28538090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{419}}^1$

素因数の和:579

約数の個数: 48

約数和(自身を含む): 60328800

約数和(自身を除く): 31790710

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 139, 245, 278, 419, 490, 695, 838, 973, 1390, 1946, 2095, 2933, 4190, 4865, 5866, 6811, 9730, 13622, 14665, 20531, 29330, 34055, 41062, 58241, 68110, 102655, 116482, 205310, 291205, 407687, 582410, 815374, 2038435, 2853809, 4076870, 5707618, 14269045, 28538090]

約数ペア:

[(1, 28538090), (2, 14269045), (5, 5707618), (7, 4076870), (10, 2853809), (14, 2038435), (35, 815374), (49, 582410), (70, 407687), (98, 291205), (139, 205310), (245, 116482), (278, 102655), (419, 68110), (490, 58241), (695, 41062), (838, 34055), (973, 29330), (1390, 20531), (1946, 14665), (2095, 13622), (2933, 9730), (4190, 6811), (4865, 5866)]