39281840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 99556128

約数和(自身を除く): 60274288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 107, 130, 208, 214, 260, 353, 428, 520, 535, 706, 856, 1040, 1070, 1391, 1412, 1712, 1765, 2140, 2782, 2824, 3530, 4280, 4589, 5564, 5648, 6955, 7060, 8560, 9178, 11128, 13910, 14120, 18356, 22256, 22945, 27820, 28240, 36712, 37771, 45890, 55640, 73424, 75542, 91780, 111280, 151084, 183560, 188855, 302168, 367120, 377710, 491023, 604336, 755420, 982046, 1510840, 1964092, 2455115, 3021680, 3928184, 4910230, 7856368, 9820460, 19640920, 39281840]

約数ペア:

[(1, 39281840), (2, 19640920), (4, 9820460), (5, 7856368), (8, 4910230), (10, 3928184), (13, 3021680), (16, 2455115), (20, 1964092), (26, 1510840), (40, 982046), (52, 755420), (65, 604336), (80, 491023), (104, 377710), (107, 367120), (130, 302168), (208, 188855), (214, 183560), (260, 151084), (353, 111280), (428, 91780), (520, 75542), (535, 73424), (706, 55640), (856, 45890), (1040, 37771), (1070, 36712), (1391, 28240), (1412, 27820), (1712, 22945), (1765, 22256), (2140, 18356), (2782, 14120), (2824, 13910), (3530, 11128), (4280, 9178), (4589, 8560), (5564, 7060), (5648, 6955)]