27908860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1223}}^1$

素因数の和:1402

約数の個数: 48

約数和(自身を含む): 67447296

約数和(自身を除く): 39538436

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 163, 326, 652, 815, 1141, 1223, 1630, 2282, 2446, 3260, 4564, 4892, 5705, 6115, 8561, 11410, 12230, 17122, 22820, 24460, 34244, 42805, 85610, 171220, 199349, 398698, 797396, 996745, 1395443, 1993490, 2790886, 3986980, 5581772, 6977215, 13954430, 27908860]

約数ペア:

[(1, 27908860), (2, 13954430), (4, 6977215), (5, 5581772), (7, 3986980), (10, 2790886), (14, 1993490), (20, 1395443), (28, 996745), (35, 797396), (70, 398698), (140, 199349), (163, 171220), (326, 85610), (652, 42805), (815, 34244), (1141, 24460), (1223, 22820), (1630, 17122), (2282, 12230), (2446, 11410), (3260, 8561), (4564, 6115), (4892, 5705)]