28735525

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{743}}^1$

素因数の和:790

約数の個数: 48

約数和(自身を含む): 46497024

約数和(自身を除く): 17761499

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 175, 221, 325, 425, 455, 595, 743, 1105, 1547, 2275, 2975, 3715, 5201, 5525, 7735, 9659, 12631, 18575, 26005, 38675, 48295, 63155, 67613, 88417, 130025, 164203, 241475, 315775, 338065, 442085, 821015, 1149421, 1690325, 2210425, 4105075, 5747105, 28735525]

約数ペア:

[(1, 28735525), (5, 5747105), (7, 4105075), (13, 2210425), (17, 1690325), (25, 1149421), (35, 821015), (65, 442085), (85, 338065), (91, 315775), (119, 241475), (175, 164203), (221, 130025), (325, 88417), (425, 67613), (455, 63155), (595, 48295), (743, 38675), (1105, 26005), (1547, 18575), (2275, 12631), (2975, 9659), (3715, 7735), (5201, 5525)]