27658015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{199}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 43891200

約数和(自身を除く): 16233185

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 199, 209, 361, 385, 665, 995, 1045, 1393, 1463, 1805, 2189, 2527, 3781, 3971, 6965, 7315, 10945, 12635, 15323, 18905, 19855, 26467, 27797, 41591, 71839, 76615, 132335, 138985, 207955, 291137, 359195, 502873, 790229, 1455685, 2514365, 3951145, 5531603, 27658015]

約数ペア:

[(1, 27658015), (5, 5531603), (7, 3951145), (11, 2514365), (19, 1455685), (35, 790229), (55, 502873), (77, 359195), (95, 291137), (133, 207955), (199, 138985), (209, 132335), (361, 76615), (385, 71839), (665, 41591), (995, 27797), (1045, 26467), (1393, 19855), (1463, 18905), (1805, 15323), (2189, 12635), (2527, 10945), (3781, 7315), (3971, 6965)]