40384640

素因数分解:

$2^7\times 5^1\times {\mathrm{89}}^1\times {\mathrm{709}}^1$

素因数の和:817

約数の個数: 64

約数和(自身を含む): 97767000

約数和(自身を除く): 57382360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 320, 356, 445, 640, 709, 712, 890, 1418, 1424, 1780, 2836, 2848, 3545, 3560, 5672, 5696, 7090, 7120, 11344, 11392, 14180, 14240, 22688, 28360, 28480, 45376, 56720, 56960, 63101, 90752, 113440, 126202, 226880, 252404, 315505, 453760, 504808, 631010, 1009616, 1262020, 2019232, 2524040, 4038464, 5048080, 8076928, 10096160, 20192320, 40384640]

約数ペア:

[(1, 40384640), (2, 20192320), (4, 10096160), (5, 8076928), (8, 5048080), (10, 4038464), (16, 2524040), (20, 2019232), (32, 1262020), (40, 1009616), (64, 631010), (80, 504808), (89, 453760), (128, 315505), (160, 252404), (178, 226880), (320, 126202), (356, 113440), (445, 90752), (640, 63101), (709, 56960), (712, 56720), (890, 45376), (1418, 28480), (1424, 28360), (1780, 22688), (2836, 14240), (2848, 14180), (3545, 11392), (3560, 11344), (5672, 7120), (5696, 7090)]