204742005

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{757}}^1$

素因数の和:870

約数の個数: 64

約数和(自身を含む): 376938240

約数和(自身を除く): 172196235

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 73, 95, 195, 219, 247, 285, 365, 741, 757, 949, 1095, 1235, 1387, 2271, 2847, 3705, 3785, 4161, 4745, 6935, 9841, 11355, 14235, 14383, 18031, 20805, 29523, 43149, 49205, 54093, 55261, 71915, 90155, 147615, 165783, 186979, 215745, 270465, 276305, 560937, 718393, 828915, 934895, 1049959, 2155179, 2804685, 3149877, 3591965, 5249795, 10775895, 13649467, 15749385, 40948401, 68247335, 204742005]

約数ペア:

[(1, 204742005), (3, 68247335), (5, 40948401), (13, 15749385), (15, 13649467), (19, 10775895), (39, 5249795), (57, 3591965), (65, 3149877), (73, 2804685), (95, 2155179), (195, 1049959), (219, 934895), (247, 828915), (285, 718393), (365, 560937), (741, 276305), (757, 270465), (949, 215745), (1095, 186979), (1235, 165783), (1387, 147615), (2271, 90155), (2847, 71915), (3705, 55261), (3785, 54093), (4161, 49205), (4745, 43149), (6935, 29523), (9841, 20805), (11355, 18031), (14235, 14383)]