386428380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{495421}}^1$

素因数の和:495446

約数の個数: 48

約数和(自身を含む): 1165232544

約数和(自身を除く): 778804164

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 495421, 990842, 1486263, 1981684, 2477105, 2972526, 4954210, 5945052, 6440473, 7431315, 9908420, 12880946, 14862630, 19321419, 25761892, 29725260, 32202365, 38642838, 64404730, 77285676, 96607095, 128809460, 193214190, 386428380]

約数ペア:

[(1, 386428380), (2, 193214190), (3, 128809460), (4, 96607095), (5, 77285676), (6, 64404730), (10, 38642838), (12, 32202365), (13, 29725260), (15, 25761892), (20, 19321419), (26, 14862630), (30, 12880946), (39, 9908420), (52, 7431315), (60, 6440473), (65, 5945052), (78, 4954210), (130, 2972526), (156, 2477105), (195, 1981684), (260, 1486263), (390, 990842), (780, 495421)]