68980240

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17597}}^1$

素因数の和:17624

約数の個数: 60

約数和(自身を含む): 186573996

約数和(自身を除く): 117593756

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 17597, 35194, 70388, 87985, 123179, 140776, 175970, 246358, 281552, 351940, 492716, 615895, 703880, 862253, 985432, 1231790, 1407760, 1724506, 1970864, 2463580, 3449012, 4311265, 4927160, 6898024, 8622530, 9854320, 13796048, 17245060, 34490120, 68980240]

約数ペア:

[(1, 68980240), (2, 34490120), (4, 17245060), (5, 13796048), (7, 9854320), (8, 8622530), (10, 6898024), (14, 4927160), (16, 4311265), (20, 3449012), (28, 2463580), (35, 1970864), (40, 1724506), (49, 1407760), (56, 1231790), (70, 985432), (80, 862253), (98, 703880), (112, 615895), (140, 492716), (196, 351940), (245, 281552), (280, 246358), (392, 175970), (490, 140776), (560, 123179), (784, 87985), (980, 70388), (1960, 35194), (3920, 17597)]