20269120

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{653}}^1$

素因数の和:767

約数の個数: 56

約数和(自身を含む): 48838104

約数和(自身を除く): 28568984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 653, 776, 970, 1306, 1552, 1940, 2612, 3104, 3265, 3880, 5224, 6208, 6530, 7760, 10448, 13060, 15520, 20896, 26120, 31040, 41792, 52240, 63341, 104480, 126682, 208960, 253364, 316705, 506728, 633410, 1013456, 1266820, 2026912, 2533640, 4053824, 5067280, 10134560, 20269120]

約数ペア:

[(1, 20269120), (2, 10134560), (4, 5067280), (5, 4053824), (8, 2533640), (10, 2026912), (16, 1266820), (20, 1013456), (32, 633410), (40, 506728), (64, 316705), (80, 253364), (97, 208960), (160, 126682), (194, 104480), (320, 63341), (388, 52240), (485, 41792), (653, 31040), (776, 26120), (970, 20896), (1306, 15520), (1552, 13060), (1940, 10448), (2612, 7760), (3104, 6530), (3265, 6208), (3880, 5224)]