78425425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 111086640

約数和(自身を除く): 32661215

約数列:

[1, 5, 13, 25, 29, 53, 65, 145, 157, 265, 325, 377, 689, 725, 785, 1325, 1537, 1885, 2041, 3445, 3925, 4553, 7685, 8321, 9425, 10205, 17225, 19981, 22765, 38425, 41605, 51025, 59189, 99905, 108173, 113825, 208025, 241309, 295945, 499525, 540865, 1206545, 1479725, 2704325, 3137017, 6032725, 15685085, 78425425]

約数ペア:

[(1, 78425425), (5, 15685085), (13, 6032725), (25, 3137017), (29, 2704325), (53, 1479725), (65, 1206545), (145, 540865), (157, 499525), (265, 295945), (325, 241309), (377, 208025), (689, 113825), (725, 108173), (785, 99905), (1325, 59189), (1537, 51025), (1885, 41605), (2041, 38425), (3445, 22765), (3925, 19981), (4553, 17225), (7685, 10205), (8321, 9425)]