137121405

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{1999}}^1$

素因数の和:2293

約数の個数: 32

約数和(自身を含む): 233280000

約数和(自身を除く): 96158595

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 269, 807, 1345, 1999, 4035, 4573, 5997, 9995, 13719, 22865, 29985, 33983, 68595, 101949, 169915, 509745, 537731, 1613193, 2688655, 8065965, 9141427, 27424281, 45707135, 137121405]

約数ペア:

[(1, 137121405), (3, 45707135), (5, 27424281), (15, 9141427), (17, 8065965), (51, 2688655), (85, 1613193), (255, 537731), (269, 509745), (807, 169915), (1345, 101949), (1999, 68595), (4035, 33983), (4573, 29985), (5997, 22865), (9995, 13719)]