81404645

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{751}}^1$

素因数の和:945

約数の個数: 32

約数和(自身を含む): 118394880

約数和(自身を除く): 36990235

約数列:

[1, 5, 7, 19, 35, 95, 133, 163, 665, 751, 815, 1141, 3097, 3755, 5257, 5705, 14269, 15485, 21679, 26285, 71345, 99883, 108395, 122413, 499415, 612065, 856891, 2325847, 4284455, 11629235, 16280929, 81404645]

約数ペア:

[(1, 81404645), (5, 16280929), (7, 11629235), (19, 4284455), (35, 2325847), (95, 856891), (133, 612065), (163, 499415), (665, 122413), (751, 108395), (815, 99883), (1141, 71345), (3097, 26285), (3755, 21679), (5257, 15485), (5705, 14269)]