207680840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{305413}}^1$

素因数の和:305441

約数の個数: 32

約数和(自身を含む): 494770680

約数和(自身を除く): 287089840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 305413, 610826, 1221652, 1527065, 2443304, 3054130, 5192021, 6108260, 10384042, 12216520, 20768084, 25960105, 41536168, 51920210, 103840420, 207680840]

約数ペア:

[(1, 207680840), (2, 103840420), (4, 51920210), (5, 41536168), (8, 25960105), (10, 20768084), (17, 12216520), (20, 10384042), (34, 6108260), (40, 5192021), (68, 3054130), (85, 2443304), (136, 1527065), (170, 1221652), (340, 610826), (680, 305413)]