71333720

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2731}}^1$

素因数の和:3395

約数の個数: 32

約数和(自身を含む): 160805520

約数和(自身を除く): 89471800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 2731, 3265, 5224, 5462, 6530, 10924, 13060, 13655, 21848, 26120, 27310, 54620, 109240, 1783343, 3566686, 7133372, 8916715, 14266744, 17833430, 35666860, 71333720]

約数ペア:

[(1, 71333720), (2, 35666860), (4, 17833430), (5, 14266744), (8, 8916715), (10, 7133372), (20, 3566686), (40, 1783343), (653, 109240), (1306, 54620), (2612, 27310), (2731, 26120), (3265, 21848), (5224, 13655), (5462, 13060), (6530, 10924)]