19015700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 26918860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 220, 236, 275, 293, 295, 550, 586, 590, 649, 1100, 1172, 1180, 1298, 1465, 1475, 2596, 2930, 2950, 3223, 3245, 5860, 5900, 6446, 6490, 7325, 12892, 12980, 14650, 16115, 16225, 17287, 29300, 32230, 32450, 34574, 64460, 64900, 69148, 80575, 86435, 161150, 172870, 190157, 322300, 345740, 380314, 432175, 760628, 864350, 950785, 1728700, 1901570, 3803140, 4753925, 9507850, 19015700]

約数ペア:

[(1, 19015700), (2, 9507850), (4, 4753925), (5, 3803140), (10, 1901570), (11, 1728700), (20, 950785), (22, 864350), (25, 760628), (44, 432175), (50, 380314), (55, 345740), (59, 322300), (100, 190157), (110, 172870), (118, 161150), (220, 86435), (236, 80575), (275, 69148), (293, 64900), (295, 64460), (550, 34574), (586, 32450), (590, 32230), (649, 29300), (1100, 17287), (1172, 16225), (1180, 16115), (1298, 14650), (1465, 12980), (1475, 12892), (2596, 7325), (2930, 6490), (2950, 6446), (3223, 5900), (3245, 5860)]