66165680

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{16879}}^1$

素因数の和:16906

約数の個数: 60

約数和(自身を含む): 178961760

約数和(自身を除く): 112796080

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, 16879, 33758, 67516, 84395, 118153, 135032, 168790, 236306, 270064, 337580, 472612, 590765, 675160, 827071, 945224, 1181530, 1350320, 1654142, 1890448, 2363060, 3308284, 4135355, 4726120, 6616568, 8270710, 9452240, 13233136, 16541420, 33082840, 66165680]

約数ペア:

[(1, 66165680), (2, 33082840), (4, 16541420), (5, 13233136), (7, 9452240), (8, 8270710), (10, 6616568), (14, 4726120), (16, 4135355), (20, 3308284), (28, 2363060), (35, 1890448), (40, 1654142), (49, 1350320), (56, 1181530), (70, 945224), (80, 827071), (98, 675160), (112, 590765), (140, 472612), (196, 337580), (245, 270064), (280, 236306), (392, 168790), (490, 135032), (560, 118153), (784, 84395), (980, 67516), (1960, 33758), (3920, 16879)]