28378525

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{9539}}^1$

素因数の和:9573

約数の個数: 24

約数和(自身を含む): 42586560

約数和(自身を除く): 14208035

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 9539, 47695, 66773, 162163, 238475, 333865, 810815, 1135141, 1669325, 4054075, 5675705, 28378525]

約数ペア:

[(1, 28378525), (5, 5675705), (7, 4054075), (17, 1669325), (25, 1135141), (35, 810815), (85, 333865), (119, 238475), (175, 162163), (425, 66773), (595, 47695), (2975, 9539)]