27555280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:356

約数の個数: 80

約数和(自身を含む): 67995648

約数和(自身を除く): 40440368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 271, 310, 328, 410, 496, 542, 620, 656, 820, 1084, 1240, 1271, 1355, 1640, 2168, 2480, 2542, 2710, 3280, 4336, 5084, 5420, 6355, 8401, 10168, 10840, 11111, 12710, 16802, 20336, 21680, 22222, 25420, 33604, 42005, 44444, 50840, 55555, 67208, 84010, 88888, 101680, 111110, 134416, 168020, 177776, 222220, 336040, 344441, 444440, 672080, 688882, 888880, 1377764, 1722205, 2755528, 3444410, 5511056, 6888820, 13777640, 27555280]

約数ペア:

[(1, 27555280), (2, 13777640), (4, 6888820), (5, 5511056), (8, 3444410), (10, 2755528), (16, 1722205), (20, 1377764), (31, 888880), (40, 688882), (41, 672080), (62, 444440), (80, 344441), (82, 336040), (124, 222220), (155, 177776), (164, 168020), (205, 134416), (248, 111110), (271, 101680), (310, 88888), (328, 84010), (410, 67208), (496, 55555), (542, 50840), (620, 44444), (656, 42005), (820, 33604), (1084, 25420), (1240, 22222), (1271, 21680), (1355, 20336), (1640, 16802), (2168, 12710), (2480, 11111), (2542, 10840), (2710, 10168), (3280, 8401), (4336, 6355), (5084, 5420)]