16978240

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{3121}}^1$

素因数の和:3155

約数の個数: 56

約数和(自身を含む): 42821352

約数和(自身を除く): 25843112

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 170, 272, 320, 340, 544, 680, 1088, 1360, 2720, 3121, 5440, 6242, 12484, 15605, 24968, 31210, 49936, 53057, 62420, 99872, 106114, 124840, 199744, 212228, 249680, 265285, 424456, 499360, 530570, 848912, 998720, 1061140, 1697824, 2122280, 3395648, 4244560, 8489120, 16978240]

約数ペア:

[(1, 16978240), (2, 8489120), (4, 4244560), (5, 3395648), (8, 2122280), (10, 1697824), (16, 1061140), (17, 998720), (20, 848912), (32, 530570), (34, 499360), (40, 424456), (64, 265285), (68, 249680), (80, 212228), (85, 199744), (136, 124840), (160, 106114), (170, 99872), (272, 62420), (320, 53057), (340, 49936), (544, 31210), (680, 24968), (1088, 15605), (1360, 12484), (2720, 6242), (3121, 5440)]