80746880

素因数分解:

$2^7\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1777}}^1$

素因数の和:1867

約数の個数: 64

約数和(自身を含む): 195864480

約数和(自身を除く): 115117600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 284, 320, 355, 568, 640, 710, 1136, 1420, 1777, 2272, 2840, 3554, 4544, 5680, 7108, 8885, 9088, 11360, 14216, 17770, 22720, 28432, 35540, 45440, 56864, 71080, 113728, 126167, 142160, 227456, 252334, 284320, 504668, 568640, 630835, 1009336, 1137280, 1261670, 2018672, 2523340, 4037344, 5046680, 8074688, 10093360, 16149376, 20186720, 40373440, 80746880]

約数ペア:

[(1, 80746880), (2, 40373440), (4, 20186720), (5, 16149376), (8, 10093360), (10, 8074688), (16, 5046680), (20, 4037344), (32, 2523340), (40, 2018672), (64, 1261670), (71, 1137280), (80, 1009336), (128, 630835), (142, 568640), (160, 504668), (284, 284320), (320, 252334), (355, 227456), (568, 142160), (640, 126167), (710, 113728), (1136, 71080), (1420, 56864), (1777, 45440), (2272, 35540), (2840, 28432), (3554, 22720), (4544, 17770), (5680, 14216), (7108, 11360), (8885, 9088)]