72789910

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:888

約数の個数: 32

約数和(自身を含む): 133918272

約数和(自身を除く): 61128362

約数列:

[1, 2, 5, 10, 71, 142, 157, 314, 355, 653, 710, 785, 1306, 1570, 3265, 6530, 11147, 22294, 46363, 55735, 92726, 102521, 111470, 205042, 231815, 463630, 512605, 1025210, 7278991, 14557982, 36394955, 72789910]

約数ペア:

[(1, 72789910), (2, 36394955), (5, 14557982), (10, 7278991), (71, 1025210), (142, 512605), (157, 463630), (314, 231815), (355, 205042), (653, 111470), (710, 102521), (785, 92726), (1306, 55735), (1570, 46363), (3265, 22294), (6530, 11147)]