72173925

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{18869}}^1$

素因数の和:18902

約数の個数: 36

約数和(自身を含む): 136882980

約数和(自身を除く): 64709055

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 765, 1275, 3825, 18869, 56607, 94345, 169821, 283035, 320773, 471725, 849105, 962319, 1415175, 1603865, 2886957, 4245525, 4811595, 8019325, 14434785, 24057975, 72173925]

約数ペア:

[(1, 72173925), (3, 24057975), (5, 14434785), (9, 8019325), (15, 4811595), (17, 4245525), (25, 2886957), (45, 1603865), (51, 1415175), (75, 962319), (85, 849105), (153, 471725), (225, 320773), (255, 283035), (425, 169821), (765, 94345), (1275, 56607), (3825, 18869)]