18103225

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 48

約数和(自身を含む): 27426816

約数和(自身を除く): 9323591

約数列:

[1, 5, 7, 25, 31, 35, 47, 71, 155, 175, 217, 235, 329, 355, 497, 775, 1085, 1175, 1457, 1645, 1775, 2201, 2485, 3337, 5425, 7285, 8225, 10199, 11005, 12425, 15407, 16685, 23359, 36425, 50995, 55025, 77035, 83425, 103447, 116795, 254975, 385175, 517235, 583975, 724129, 2586175, 3620645, 18103225]

約数ペア:

[(1, 18103225), (5, 3620645), (7, 2586175), (25, 724129), (31, 583975), (35, 517235), (47, 385175), (71, 254975), (155, 116795), (175, 103447), (217, 83425), (235, 77035), (329, 55025), (355, 50995), (497, 36425), (775, 23359), (1085, 16685), (1175, 15407), (1457, 12425), (1645, 11005), (1775, 10199), (2201, 8225), (2485, 7285), (3337, 5425)]