13777640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 32901120

約数和(自身を除く): 19123480

約数列:

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

約数ペア:

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