80048800

素因数分解:

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

素因数の和:255

約数の個数: 144

約数和(自身を含む): 216548640

約数和(自身を除く): 136499840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 43, 50, 52, 65, 80, 86, 100, 104, 130, 160, 172, 179, 200, 208, 215, 260, 325, 344, 358, 400, 416, 430, 520, 559, 650, 688, 716, 800, 860, 895, 1040, 1075, 1118, 1300, 1376, 1432, 1720, 1790, 2080, 2150, 2236, 2327, 2600, 2795, 2864, 3440, 3580, 4300, 4472, 4475, 4654, 5200, 5590, 5728, 6880, 7160, 7697, 8600, 8944, 8950, 9308, 10400, 11180, 11635, 13975, 14320, 15394, 17200, 17888, 17900, 18616, 22360, 23270, 27950, 28640, 30788, 34400, 35800, 37232, 38485, 44720, 46540, 55900, 58175, 61576, 71600, 74464, 76970, 89440, 93080, 100061, 111800, 116350, 123152, 143200, 153940, 186160, 192425, 200122, 223600, 232700, 246304, 307880, 372320, 384850, 400244, 447200, 465400, 500305, 615760, 769700, 800488, 930800, 1000610, 1231520, 1539400, 1600976, 1861600, 2001220, 2501525, 3078800, 3201952, 4002440, 5003050, 6157600, 8004880, 10006100, 16009760, 20012200, 40024400, 80048800]

約数ペア:

[(1, 80048800), (2, 40024400), (4, 20012200), (5, 16009760), (8, 10006100), (10, 8004880), (13, 6157600), (16, 5003050), (20, 4002440), (25, 3201952), (26, 3078800), (32, 2501525), (40, 2001220), (43, 1861600), (50, 1600976), (52, 1539400), (65, 1231520), (80, 1000610), (86, 930800), (100, 800488), (104, 769700), (130, 615760), (160, 500305), (172, 465400), (179, 447200), (200, 400244), (208, 384850), (215, 372320), (260, 307880), (325, 246304), (344, 232700), (358, 223600), (400, 200122), (416, 192425), (430, 186160), (520, 153940), (559, 143200), (650, 123152), (688, 116350), (716, 111800), (800, 100061), (860, 93080), (895, 89440), (1040, 76970), (1075, 74464), (1118, 71600), (1300, 61576), (1376, 58175), (1432, 55900), (1720, 46540), (1790, 44720), (2080, 38485), (2150, 37232), (2236, 35800), (2327, 34400), (2600, 30788), (2795, 28640), (2864, 27950), (3440, 23270), (3580, 22360), (4300, 18616), (4472, 17900), (4475, 17888), (4654, 17200), (5200, 15394), (5590, 14320), (5728, 13975), (6880, 11635), (7160, 11180), (7697, 10400), (8600, 9308), (8944, 8950)]