28156780757

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{25913}}^1$

素因数の和:26357

約数の個数: 32

約数和(自身を含む): 35644396032

約数和(自身を除く): 7487615275

約数列:

[1, 7, 17, 23, 119, 161, 391, 397, 2737, 2779, 6749, 9131, 25913, 47243, 63917, 155227, 181391, 440521, 595999, 1086589, 3083647, 4171993, 10131983, 10287461, 70923881, 72012227, 174886837, 236611603, 1224207859, 1656281221, 4022397251, 28156780757]

約数ペア:

[(1, 28156780757), (7, 4022397251), (17, 1656281221), (23, 1224207859), (119, 236611603), (161, 174886837), (391, 72012227), (397, 70923881), (2737, 10287461), (2779, 10131983), (6749, 4171993), (9131, 3083647), (25913, 1086589), (47243, 595999), (63917, 440521), (155227, 181391)]