25697775

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 44559648

約数和(自身を除く): 18861873

約数列:

[1, 3, 5, 15, 25, 41, 61, 75, 123, 137, 183, 205, 305, 411, 615, 685, 915, 1025, 1525, 2055, 2501, 3075, 3425, 4575, 5617, 7503, 8357, 10275, 12505, 16851, 25071, 28085, 37515, 41785, 62525, 84255, 125355, 140425, 187575, 208925, 342637, 421275, 626775, 1027911, 1713185, 5139555, 8565925, 25697775]

約数ペア:

[(1, 25697775), (3, 8565925), (5, 5139555), (15, 1713185), (25, 1027911), (41, 626775), (61, 421275), (75, 342637), (123, 208925), (137, 187575), (183, 140425), (205, 125355), (305, 84255), (411, 62525), (615, 41785), (685, 37515), (915, 28085), (1025, 25071), (1525, 16851), (2055, 12505), (2501, 10275), (3075, 8357), (3425, 7503), (4575, 5617)]