28278415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 10212785

約数列:

[1, 5, 11, 53, 55, 89, 109, 265, 445, 545, 583, 979, 1199, 2915, 4717, 4895, 5777, 5995, 9701, 23585, 28885, 48505, 51887, 63547, 106711, 259435, 317735, 514153, 533555, 2570765, 5655683, 28278415]

約数ペア:

[(1, 28278415), (5, 5655683), (11, 2570765), (53, 533555), (55, 514153), (89, 317735), (109, 259435), (265, 106711), (445, 63547), (545, 51887), (583, 48505), (979, 28885), (1199, 23585), (2915, 9701), (4717, 5995), (4895, 5777)]