28981845

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 52296192

約数和(自身を除く): 23314347

約数列:

[1, 3, 5, 9, 15, 45, 47, 71, 141, 193, 213, 235, 355, 423, 579, 639, 705, 965, 1065, 1737, 2115, 2895, 3195, 3337, 8685, 9071, 10011, 13703, 16685, 27213, 30033, 41109, 45355, 50055, 68515, 81639, 123327, 136065, 150165, 205545, 408195, 616635, 644041, 1932123, 3220205, 5796369, 9660615, 28981845]

約数ペア:

[(1, 28981845), (3, 9660615), (5, 5796369), (9, 3220205), (15, 1932123), (45, 644041), (47, 616635), (71, 408195), (141, 205545), (193, 150165), (213, 136065), (235, 123327), (355, 81639), (423, 68515), (579, 50055), (639, 45355), (705, 41109), (965, 30033), (1065, 27213), (1737, 16685), (2115, 13703), (2895, 10011), (3195, 9071), (3337, 8685)]