161663425

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 252162432

約数和(自身を除く): 90499007

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 137, 175, 275, 385, 613, 685, 959, 1507, 1925, 3065, 3425, 4291, 4795, 6743, 7535, 10549, 15325, 21455, 23975, 33715, 37675, 47201, 52745, 83981, 107275, 168575, 236005, 263725, 419905, 587867, 923791, 1180025, 2099525, 2939335, 4618955, 6466537, 14696675, 23094775, 32332685, 161663425]

約数ペア:

[(1, 161663425), (5, 32332685), (7, 23094775), (11, 14696675), (25, 6466537), (35, 4618955), (55, 2939335), (77, 2099525), (137, 1180025), (175, 923791), (275, 587867), (385, 419905), (613, 263725), (685, 236005), (959, 168575), (1507, 107275), (1925, 83981), (3065, 52745), (3425, 47201), (4291, 37675), (4795, 33715), (6743, 23975), (7535, 21455), (10549, 15325)]