290208520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1036459}}^1$

素因数の和:1036477

約数の個数: 32

約数和(自身を含む): 746251200

約数和(自身を除く): 456042680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1036459, 2072918, 4145836, 5182295, 7255213, 8291672, 10364590, 14510426, 20729180, 29020852, 36276065, 41458360, 58041704, 72552130, 145104260, 290208520]

約数ペア:

[(1, 290208520), (2, 145104260), (4, 72552130), (5, 58041704), (7, 41458360), (8, 36276065), (10, 29020852), (14, 20729180), (20, 14510426), (28, 10364590), (35, 8291672), (40, 7255213), (56, 5182295), (70, 4145836), (140, 2072918), (280, 1036459)]