39666640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{887}}^1$

素因数の和:956

約数の個数: 80

約数和(自身を含む): 101743488

約数和(自身を除く): 62076848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 208, 215, 260, 344, 430, 520, 559, 688, 860, 887, 1040, 1118, 1720, 1774, 2236, 2795, 3440, 3548, 4435, 4472, 5590, 7096, 8870, 8944, 11180, 11531, 14192, 17740, 22360, 23062, 35480, 38141, 44720, 46124, 57655, 70960, 76282, 92248, 115310, 152564, 184496, 190705, 230620, 305128, 381410, 461240, 495833, 610256, 762820, 922480, 991666, 1525640, 1983332, 2479165, 3051280, 3966664, 4958330, 7933328, 9916660, 19833320, 39666640]

約数ペア:

[(1, 39666640), (2, 19833320), (4, 9916660), (5, 7933328), (8, 4958330), (10, 3966664), (13, 3051280), (16, 2479165), (20, 1983332), (26, 1525640), (40, 991666), (43, 922480), (52, 762820), (65, 610256), (80, 495833), (86, 461240), (104, 381410), (130, 305128), (172, 230620), (208, 190705), (215, 184496), (260, 152564), (344, 115310), (430, 92248), (520, 76282), (559, 70960), (688, 57655), (860, 46124), (887, 44720), (1040, 38141), (1118, 35480), (1720, 23062), (1774, 22360), (2236, 17740), (2795, 14192), (3440, 11531), (3548, 11180), (4435, 8944), (4472, 8870), (5590, 7096)]