31740160

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{181}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 77005656

約数和(自身を除く): 45265496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 181, 256, 274, 320, 362, 548, 640, 685, 724, 905, 1096, 1280, 1370, 1448, 1810, 2192, 2740, 2896, 3620, 4384, 5480, 5792, 7240, 8768, 10960, 11584, 14480, 17536, 21920, 23168, 24797, 28960, 35072, 43840, 46336, 49594, 57920, 87680, 99188, 115840, 123985, 175360, 198376, 231680, 247970, 396752, 495940, 793504, 991880, 1587008, 1983760, 3174016, 3967520, 6348032, 7935040, 15870080, 31740160]

約数ペア:

[(1, 31740160), (2, 15870080), (4, 7935040), (5, 6348032), (8, 3967520), (10, 3174016), (16, 1983760), (20, 1587008), (32, 991880), (40, 793504), (64, 495940), (80, 396752), (128, 247970), (137, 231680), (160, 198376), (181, 175360), (256, 123985), (274, 115840), (320, 99188), (362, 87680), (548, 57920), (640, 49594), (685, 46336), (724, 43840), (905, 35072), (1096, 28960), (1280, 24797), (1370, 23168), (1448, 21920), (1810, 17536), (2192, 14480), (2740, 11584), (2896, 10960), (3620, 8768), (4384, 7240), (5480, 5792)]