168808380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{216421}}^1$

素因数の和:216446

約数の個数: 48

約数和(自身を含む): 509024544

約数和(自身を除く): 340216164

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, 216421, 432842, 649263, 865684, 1082105, 1298526, 2164210, 2597052, 2813473, 3246315, 4328420, 5626946, 6492630, 8440419, 11253892, 12985260, 14067365, 16880838, 28134730, 33761676, 42202095, 56269460, 84404190, 168808380]

約数ペア:

[(1, 168808380), (2, 84404190), (3, 56269460), (4, 42202095), (5, 33761676), (6, 28134730), (10, 16880838), (12, 14067365), (13, 12985260), (15, 11253892), (20, 8440419), (26, 6492630), (30, 5626946), (39, 4328420), (52, 3246315), (60, 2813473), (65, 2597052), (78, 2164210), (130, 1298526), (156, 1082105), (195, 865684), (260, 649263), (390, 432842), (780, 216421)]