78808380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{187639}}^1$

素因数の和:187658

約数の個数: 48

約数和(自身を含む): 252188160

約数和(自身を除く): 173379780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 187639, 375278, 562917, 750556, 938195, 1125834, 1313473, 1876390, 2251668, 2626946, 2814585, 3752780, 3940419, 5253892, 5629170, 6567365, 7880838, 11258340, 13134730, 15761676, 19702095, 26269460, 39404190, 78808380]

約数ペア:

[(1, 78808380), (2, 39404190), (3, 26269460), (4, 19702095), (5, 15761676), (6, 13134730), (7, 11258340), (10, 7880838), (12, 6567365), (14, 5629170), (15, 5253892), (20, 3940419), (21, 3752780), (28, 2814585), (30, 2626946), (35, 2251668), (42, 1876390), (60, 1313473), (70, 1125834), (84, 938195), (105, 750556), (140, 562917), (210, 375278), (420, 187639)]