80497920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{20963}}^1$

素因数の和:20987

約数の個数: 72

約数和(自身を含む): 257102496

約数和(自身を除く): 176604576

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 20963, 41926, 62889, 83852, 104815, 125778, 167704, 209630, 251556, 314445, 335408, 419260, 503112, 628890, 670816, 838520, 1006224, 1257780, 1341632, 1677040, 2012448, 2515560, 2683264, 3354080, 4024896, 5031120, 5366528, 6708160, 8049792, 10062240, 13416320, 16099584, 20124480, 26832640, 40248960, 80497920]

約数ペア:

[(1, 80497920), (2, 40248960), (3, 26832640), (4, 20124480), (5, 16099584), (6, 13416320), (8, 10062240), (10, 8049792), (12, 6708160), (15, 5366528), (16, 5031120), (20, 4024896), (24, 3354080), (30, 2683264), (32, 2515560), (40, 2012448), (48, 1677040), (60, 1341632), (64, 1257780), (80, 1006224), (96, 838520), (120, 670816), (128, 628890), (160, 503112), (192, 419260), (240, 335408), (256, 314445), (320, 251556), (384, 209630), (480, 167704), (640, 125778), (768, 104815), (960, 83852), (1280, 62889), (1920, 41926), (3840, 20963)]