27400460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 59549952

約数和(自身を除く): 32149492

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 151, 172, 211, 215, 302, 422, 430, 604, 755, 844, 860, 1055, 1510, 2110, 3020, 4220, 6493, 9073, 12986, 18146, 25972, 31861, 32465, 36292, 45365, 63722, 64930, 90730, 127444, 129860, 159305, 181460, 318610, 637220, 1370023, 2740046, 5480092, 6850115, 13700230, 27400460]

約数ペア:

[(1, 27400460), (2, 13700230), (4, 6850115), (5, 5480092), (10, 2740046), (20, 1370023), (43, 637220), (86, 318610), (151, 181460), (172, 159305), (211, 129860), (215, 127444), (302, 90730), (422, 64930), (430, 63722), (604, 45365), (755, 36292), (844, 32465), (860, 31861), (1055, 25972), (1510, 18146), (2110, 12986), (3020, 9073), (4220, 6493)]