8004880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 20623680

約数和(自身を除く): 12618800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 43, 52, 65, 80, 86, 104, 130, 172, 179, 208, 215, 260, 344, 358, 430, 520, 559, 688, 716, 860, 895, 1040, 1118, 1432, 1720, 1790, 2236, 2327, 2795, 2864, 3440, 3580, 4472, 4654, 5590, 7160, 7697, 8944, 9308, 11180, 11635, 14320, 15394, 18616, 22360, 23270, 30788, 37232, 38485, 44720, 46540, 61576, 76970, 93080, 100061, 123152, 153940, 186160, 200122, 307880, 400244, 500305, 615760, 800488, 1000610, 1600976, 2001220, 4002440, 8004880]

約数ペア:

[(1, 8004880), (2, 4002440), (4, 2001220), (5, 1600976), (8, 1000610), (10, 800488), (13, 615760), (16, 500305), (20, 400244), (26, 307880), (40, 200122), (43, 186160), (52, 153940), (65, 123152), (80, 100061), (86, 93080), (104, 76970), (130, 61576), (172, 46540), (179, 44720), (208, 38485), (215, 37232), (260, 30788), (344, 23270), (358, 22360), (430, 18616), (520, 15394), (559, 14320), (688, 11635), (716, 11180), (860, 9308), (895, 8944), (1040, 7697), (1118, 7160), (1432, 5590), (1720, 4654), (1790, 4472), (2236, 3580), (2327, 3440), (2795, 2864)]