78555680

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{70139}}^1$

素因数の和:70161

約数の個数: 48

約数和(自身を含む): 212103360

約数和(自身を除く): 133547680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 70139, 140278, 280556, 350695, 490973, 561112, 701390, 981946, 1122224, 1402780, 1963892, 2244448, 2454865, 2805560, 3927784, 4909730, 5611120, 7855568, 9819460, 11222240, 15711136, 19638920, 39277840, 78555680]

約数ペア:

[(1, 78555680), (2, 39277840), (4, 19638920), (5, 15711136), (7, 11222240), (8, 9819460), (10, 7855568), (14, 5611120), (16, 4909730), (20, 3927784), (28, 2805560), (32, 2454865), (35, 2244448), (40, 1963892), (56, 1402780), (70, 1122224), (80, 981946), (112, 701390), (140, 561112), (160, 490973), (224, 350695), (280, 280556), (560, 140278), (1120, 70139)]