657453875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^2$

素因数の和:265

約数の個数: 48

約数和(自身を含む): 913584672

約数和(自身を除く): 256130797

約数列:

[1, 5, 13, 25, 43, 65, 97, 125, 215, 325, 485, 559, 1075, 1261, 1625, 2425, 2795, 4171, 5375, 6305, 9409, 12125, 13975, 20855, 31525, 47045, 54223, 69875, 104275, 122317, 157625, 235225, 271115, 404587, 521375, 611585, 1176125, 1355575, 2022935, 3057925, 5259631, 6777875, 10114675, 15289625, 26298155, 50573375, 131490775, 657453875]

約数ペア:

[(1, 657453875), (5, 131490775), (13, 50573375), (25, 26298155), (43, 15289625), (65, 10114675), (97, 6777875), (125, 5259631), (215, 3057925), (325, 2022935), (485, 1355575), (559, 1176125), (1075, 611585), (1261, 521375), (1625, 404587), (2425, 271115), (2795, 235225), (4171, 157625), (5375, 122317), (6305, 104275), (9409, 69875), (12125, 54223), (13975, 47045), (20855, 31525)]