216860525

素因数分解:

$5^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{839}}^1$

素因数の和:1074

約数の個数: 36

約数和(自身を含む): 314667360

約数和(自身を除く): 97806835

約数列:

[1, 5, 7, 25, 35, 49, 175, 211, 245, 839, 1055, 1225, 1477, 4195, 5275, 5873, 7385, 10339, 20975, 29365, 36925, 41111, 51695, 146825, 177029, 205555, 258475, 885145, 1027775, 1239203, 4425725, 6196015, 8674421, 30980075, 43372105, 216860525]

約数ペア:

[(1, 216860525), (5, 43372105), (7, 30980075), (25, 8674421), (35, 6196015), (49, 4425725), (175, 1239203), (211, 1027775), (245, 885145), (839, 258475), (1055, 205555), (1225, 177029), (1477, 146825), (4195, 51695), (5275, 41111), (5873, 36925), (7385, 29365), (10339, 20975)]