13220415

素因数分解:

$3^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:73

約数の個数: 72

約数和(自身を含む): 26452608

約数和(自身を除く): 13232193

約数列:

[1, 3, 5, 9, 13, 15, 27, 31, 39, 45, 65, 81, 93, 117, 135, 155, 195, 243, 279, 351, 403, 405, 465, 585, 729, 837, 1053, 1209, 1215, 1395, 1755, 2015, 2187, 2511, 3159, 3627, 3645, 4185, 5265, 6045, 6561, 7533, 9477, 10881, 10935, 12555, 15795, 18135, 22599, 28431, 32643, 32805, 37665, 47385, 54405, 67797, 85293, 97929, 112995, 142155, 163215, 203391, 293787, 338985, 426465, 489645, 881361, 1016955, 1468935, 2644083, 4406805, 13220415]

約数ペア:

[(1, 13220415), (3, 4406805), (5, 2644083), (9, 1468935), (13, 1016955), (15, 881361), (27, 489645), (31, 426465), (39, 338985), (45, 293787), (65, 203391), (81, 163215), (93, 142155), (117, 112995), (135, 97929), (155, 85293), (195, 67797), (243, 54405), (279, 47385), (351, 37665), (403, 32805), (405, 32643), (465, 28431), (585, 22599), (729, 18135), (837, 15795), (1053, 12555), (1209, 10935), (1215, 10881), (1395, 9477), (1755, 7533), (2015, 6561), (2187, 6045), (2511, 5265), (3159, 4185), (3627, 3645)]