18759520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{311}}^1$

素因数の和:368

約数の個数: 96

約数和(自身を含む): 49533120

約数和(自身を除く): 30773600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 52, 58, 65, 80, 104, 116, 130, 145, 160, 208, 232, 260, 290, 311, 377, 416, 464, 520, 580, 622, 754, 928, 1040, 1160, 1244, 1508, 1555, 1885, 2080, 2320, 2488, 3016, 3110, 3770, 4043, 4640, 4976, 6032, 6220, 7540, 8086, 9019, 9952, 12064, 12440, 15080, 16172, 18038, 20215, 24880, 30160, 32344, 36076, 40430, 45095, 49760, 60320, 64688, 72152, 80860, 90190, 117247, 129376, 144304, 161720, 180380, 234494, 288608, 323440, 360760, 468988, 586235, 646880, 721520, 937976, 1172470, 1443040, 1875952, 2344940, 3751904, 4689880, 9379760, 18759520]

約数ペア:

[(1, 18759520), (2, 9379760), (4, 4689880), (5, 3751904), (8, 2344940), (10, 1875952), (13, 1443040), (16, 1172470), (20, 937976), (26, 721520), (29, 646880), (32, 586235), (40, 468988), (52, 360760), (58, 323440), (65, 288608), (80, 234494), (104, 180380), (116, 161720), (130, 144304), (145, 129376), (160, 117247), (208, 90190), (232, 80860), (260, 72152), (290, 64688), (311, 60320), (377, 49760), (416, 45095), (464, 40430), (520, 36076), (580, 32344), (622, 30160), (754, 24880), (928, 20215), (1040, 18038), (1160, 16172), (1244, 15080), (1508, 12440), (1555, 12064), (1885, 9952), (2080, 9019), (2320, 8086), (2488, 7540), (3016, 6220), (3110, 6032), (3770, 4976), (4043, 4640)]