1398984925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 1905433600

約数和(自身を除く): 506448675

約数列:

[1, 5, 13, 25, 65, 97, 199, 223, 325, 485, 995, 1115, 1261, 2425, 2587, 2899, 4975, 5575, 6305, 12935, 14495, 19303, 21631, 31525, 44377, 64675, 72475, 96515, 108155, 221885, 250939, 281203, 482575, 540775, 576901, 1109425, 1254695, 1406015, 2884505, 4304569, 6273475, 7030075, 14422525, 21522845, 55959397, 107614225, 279796985, 1398984925]

約数ペア:

[(1, 1398984925), (5, 279796985), (13, 107614225), (25, 55959397), (65, 21522845), (97, 14422525), (199, 7030075), (223, 6273475), (325, 4304569), (485, 2884505), (995, 1406015), (1115, 1254695), (1261, 1109425), (2425, 576901), (2587, 540775), (2899, 482575), (4975, 281203), (5575, 250939), (6305, 221885), (12935, 108155), (14495, 96515), (19303, 72475), (21631, 64675), (31525, 44377)]