28723815

素因数分解:

$3^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{503}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 24111513

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 243, 405, 423, 503, 705, 1215, 1269, 1509, 2115, 2515, 3807, 4527, 6345, 7545, 11421, 13581, 19035, 22635, 23641, 40743, 57105, 67905, 70923, 118205, 122229, 203715, 212769, 354615, 611145, 638307, 1063845, 1914921, 3191535, 5744763, 9574605, 28723815]

約数ペア:

[(1, 28723815), (3, 9574605), (5, 5744763), (9, 3191535), (15, 1914921), (27, 1063845), (45, 638307), (47, 611145), (81, 354615), (135, 212769), (141, 203715), (235, 122229), (243, 118205), (405, 70923), (423, 67905), (503, 57105), (705, 40743), (1215, 23641), (1269, 22635), (1509, 19035), (2115, 13581), (2515, 11421), (3807, 7545), (4527, 6345)]