25230915

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 45489600

約数和(自身を除く): 20258685

約数列:

[1, 3, 5, 9, 15, 45, 53, 71, 149, 159, 213, 265, 355, 447, 477, 639, 745, 795, 1065, 1341, 2235, 2385, 3195, 3763, 6705, 7897, 10579, 11289, 18815, 23691, 31737, 33867, 39485, 52895, 56445, 71073, 95211, 118455, 158685, 169335, 355365, 476055, 560687, 1682061, 2803435, 5046183, 8410305, 25230915]

約数ペア:

[(1, 25230915), (3, 8410305), (5, 5046183), (9, 2803435), (15, 1682061), (45, 560687), (53, 476055), (71, 355365), (149, 169335), (159, 158685), (213, 118455), (265, 95211), (355, 71073), (447, 56445), (477, 52895), (639, 39485), (745, 33867), (795, 31737), (1065, 23691), (1341, 18815), (2235, 11289), (2385, 10579), (3195, 7897), (3763, 6705)]