389884575

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 656208000

約数和(自身を除く): 266323425

約数列:

[1, 3, 5, 15, 25, 75, 139, 149, 251, 417, 447, 695, 745, 753, 1255, 2085, 2235, 3475, 3725, 3765, 6275, 10425, 11175, 18825, 20711, 34889, 37399, 62133, 103555, 104667, 112197, 174445, 186995, 310665, 517775, 523335, 560985, 872225, 934975, 1553325, 2616675, 2804925, 5198461, 15595383, 25992305, 77976915, 129961525, 389884575]

約数ペア:

[(1, 389884575), (3, 129961525), (5, 77976915), (15, 25992305), (25, 15595383), (75, 5198461), (139, 2804925), (149, 2616675), (251, 1553325), (417, 934975), (447, 872225), (695, 560985), (745, 523335), (753, 517775), (1255, 310665), (2085, 186995), (2235, 174445), (3475, 112197), (3725, 104667), (3765, 103555), (6275, 62133), (10425, 37399), (11175, 34889), (18825, 20711)]