28153280

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1021

約数の個数: 56

約数和(自身を含む): 67805808

約数和(自身を除く): 39652528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 776, 907, 970, 1552, 1814, 1940, 3104, 3628, 3880, 4535, 6208, 7256, 7760, 9070, 14512, 15520, 18140, 29024, 31040, 36280, 58048, 72560, 87979, 145120, 175958, 290240, 351916, 439895, 703832, 879790, 1407664, 1759580, 2815328, 3519160, 5630656, 7038320, 14076640, 28153280]

約数ペア:

[(1, 28153280), (2, 14076640), (4, 7038320), (5, 5630656), (8, 3519160), (10, 2815328), (16, 1759580), (20, 1407664), (32, 879790), (40, 703832), (64, 439895), (80, 351916), (97, 290240), (160, 175958), (194, 145120), (320, 87979), (388, 72560), (485, 58048), (776, 36280), (907, 31040), (970, 29024), (1552, 18140), (1814, 15520), (1940, 14512), (3104, 9070), (3628, 7760), (3880, 7256), (4535, 6208)]