31815315

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:409

約数の個数: 64

約数和(自身を含む): 65387520

約数和(自身を除く): 33572205

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 131, 135, 189, 257, 315, 393, 655, 771, 917, 945, 1179, 1285, 1799, 1965, 2313, 2751, 3537, 3855, 4585, 5397, 5895, 6939, 8253, 8995, 11565, 13755, 16191, 17685, 24759, 26985, 33667, 34695, 41265, 48573, 80955, 101001, 123795, 168335, 235669, 242865, 303003, 505005, 707007, 909009, 1178345, 1515015, 2121021, 3535035, 4545045, 6363063, 10605105, 31815315]

約数ペア:

[(1, 31815315), (3, 10605105), (5, 6363063), (7, 4545045), (9, 3535035), (15, 2121021), (21, 1515015), (27, 1178345), (35, 909009), (45, 707007), (63, 505005), (105, 303003), (131, 242865), (135, 235669), (189, 168335), (257, 123795), (315, 101001), (393, 80955), (655, 48573), (771, 41265), (917, 34695), (945, 33667), (1179, 26985), (1285, 24759), (1799, 17685), (1965, 16191), (2313, 13755), (2751, 11565), (3537, 8995), (3855, 8253), (4585, 6939), (5397, 5895)]