31425878

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 55157760

約数和(自身を除く): 23731882

約数列:

[1, 2, 11, 22, 31, 59, 62, 71, 118, 121, 142, 242, 341, 649, 682, 781, 1298, 1562, 1829, 2201, 3658, 3751, 4189, 4402, 7139, 7502, 8378, 8591, 14278, 17182, 20119, 24211, 40238, 46079, 48422, 92158, 129859, 221309, 259718, 266321, 442618, 506869, 532642, 1013738, 1428449, 2856898, 15712939, 31425878]

約数ペア:

[(1, 31425878), (2, 15712939), (11, 2856898), (22, 1428449), (31, 1013738), (59, 532642), (62, 506869), (71, 442618), (118, 266321), (121, 259718), (142, 221309), (242, 129859), (341, 92158), (649, 48422), (682, 46079), (781, 40238), (1298, 24211), (1562, 20119), (1829, 17182), (2201, 14278), (3658, 8591), (3751, 8378), (4189, 7502), (4402, 7139)]