80860000

素因数分解:

$2^5\times 5^4\times {\mathrm{13}}^1\times {\mathrm{311}}^1$

素因数の和:354

約数の個数: 120

約数和(自身を含む): 214918704

約数和(自身を除く): 134058704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 125, 130, 160, 200, 208, 250, 260, 311, 325, 400, 416, 500, 520, 622, 625, 650, 800, 1000, 1040, 1244, 1250, 1300, 1555, 1625, 2000, 2080, 2488, 2500, 2600, 3110, 3250, 4000, 4043, 4976, 5000, 5200, 6220, 6500, 7775, 8086, 8125, 9952, 10000, 10400, 12440, 13000, 15550, 16172, 16250, 20000, 20215, 24880, 26000, 31100, 32344, 32500, 38875, 40430, 49760, 52000, 62200, 64688, 65000, 77750, 80860, 101075, 124400, 129376, 130000, 155500, 161720, 194375, 202150, 248800, 260000, 311000, 323440, 388750, 404300, 505375, 622000, 646880, 777500, 808600, 1010750, 1244000, 1555000, 1617200, 2021500, 2526875, 3110000, 3234400, 4043000, 5053750, 6220000, 8086000, 10107500, 16172000, 20215000, 40430000, 80860000]

約数ペア:

[(1, 80860000), (2, 40430000), (4, 20215000), (5, 16172000), (8, 10107500), (10, 8086000), (13, 6220000), (16, 5053750), (20, 4043000), (25, 3234400), (26, 3110000), (32, 2526875), (40, 2021500), (50, 1617200), (52, 1555000), (65, 1244000), (80, 1010750), (100, 808600), (104, 777500), (125, 646880), (130, 622000), (160, 505375), (200, 404300), (208, 388750), (250, 323440), (260, 311000), (311, 260000), (325, 248800), (400, 202150), (416, 194375), (500, 161720), (520, 155500), (622, 130000), (625, 129376), (650, 124400), (800, 101075), (1000, 80860), (1040, 77750), (1244, 65000), (1250, 64688), (1300, 62200), (1555, 52000), (1625, 49760), (2000, 40430), (2080, 38875), (2488, 32500), (2500, 32344), (2600, 31100), (3110, 26000), (3250, 24880), (4000, 20215), (4043, 20000), (4976, 16250), (5000, 16172), (5200, 15550), (6220, 13000), (6500, 12440), (7775, 10400), (8086, 10000), (8125, 9952)]