280808620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{337}}^1\times {\mathrm{683}}^1$

素因数の和:1090

約数の個数: 48

約数和(自身を含む): 602023968

約数和(自身を除く): 321215348

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 337, 610, 674, 683, 1220, 1348, 1366, 1685, 2732, 3370, 3415, 6740, 6830, 13660, 20557, 41114, 41663, 82228, 83326, 102785, 166652, 205570, 208315, 230171, 411140, 416630, 460342, 833260, 920684, 1150855, 2301710, 4603420, 14040431, 28080862, 56161724, 70202155, 140404310, 280808620]

約数ペア:

[(1, 280808620), (2, 140404310), (4, 70202155), (5, 56161724), (10, 28080862), (20, 14040431), (61, 4603420), (122, 2301710), (244, 1150855), (305, 920684), (337, 833260), (610, 460342), (674, 416630), (683, 411140), (1220, 230171), (1348, 208315), (1366, 205570), (1685, 166652), (2732, 102785), (3370, 83326), (3415, 82228), (6740, 41663), (6830, 41114), (13660, 20557)]