255808940

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{163}}^1\times {\mathrm{599}}^1$

素因数の和:902

約数の個数: 48

約数和(自身を含む): 545529600

約数和(自身を除く): 289720660

約数列:

[1, 2, 4, 5, 10, 20, 131, 163, 262, 326, 524, 599, 652, 655, 815, 1198, 1310, 1630, 2396, 2620, 2995, 3260, 5990, 11980, 21353, 42706, 78469, 85412, 97637, 106765, 156938, 195274, 213530, 313876, 390548, 392345, 427060, 488185, 784690, 976370, 1569380, 1952740, 12790447, 25580894, 51161788, 63952235, 127904470, 255808940]

約数ペア:

[(1, 255808940), (2, 127904470), (4, 63952235), (5, 51161788), (10, 25580894), (20, 12790447), (131, 1952740), (163, 1569380), (262, 976370), (326, 784690), (524, 488185), (599, 427060), (652, 392345), (655, 390548), (815, 313876), (1198, 213530), (1310, 195274), (1630, 156938), (2396, 106765), (2620, 97637), (2995, 85412), (3260, 78469), (5990, 42706), (11980, 21353)]