20343715

素因数分解:

$5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 29030400

約数和(自身を除く): 8686685

約数列:

[1, 5, 7, 35, 47, 83, 149, 235, 329, 415, 581, 745, 1043, 1645, 2905, 3901, 5215, 7003, 12367, 19505, 27307, 35015, 49021, 61835, 86569, 136535, 245105, 432845, 581249, 2906245, 4068743, 20343715]

約数ペア:

[(1, 20343715), (5, 4068743), (7, 2906245), (35, 581249), (47, 432845), (83, 245105), (149, 136535), (235, 86569), (329, 61835), (415, 49021), (581, 35015), (745, 27307), (1043, 19505), (1645, 12367), (2905, 7003), (3901, 5215)]