80665480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2797}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 209514240

約数和(自身を除く): 128848760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 1030, 1442, 2060, 2797, 2884, 3605, 4120, 5594, 5768, 7210, 11188, 13985, 14420, 19579, 22376, 27970, 28840, 39158, 55940, 78316, 97895, 111880, 156632, 195790, 288091, 391580, 576182, 783160, 1152364, 1440455, 2016637, 2304728, 2880910, 4033274, 5761820, 8066548, 10083185, 11523640, 16133096, 20166370, 40332740, 80665480]

約数ペア:

[(1, 80665480), (2, 40332740), (4, 20166370), (5, 16133096), (7, 11523640), (8, 10083185), (10, 8066548), (14, 5761820), (20, 4033274), (28, 2880910), (35, 2304728), (40, 2016637), (56, 1440455), (70, 1152364), (103, 783160), (140, 576182), (206, 391580), (280, 288091), (412, 195790), (515, 156632), (721, 111880), (824, 97895), (1030, 78316), (1442, 55940), (2060, 39158), (2797, 28840), (2884, 27970), (3605, 22376), (4120, 19579), (5594, 14420), (5768, 13985), (7210, 11188)]