219807705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1087}}^1$

素因数の和:1186

約数の個数: 64

約数和(自身を含む): 407973888

約数和(自身を除く): 188166183

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 61, 65, 85, 183, 195, 221, 255, 305, 663, 793, 915, 1037, 1087, 1105, 2379, 3111, 3261, 3315, 3965, 5185, 5435, 11895, 13481, 14131, 15555, 16305, 18479, 40443, 42393, 55437, 66307, 67405, 70655, 92395, 198921, 202215, 211965, 240227, 277185, 331535, 720681, 861991, 994605, 1127219, 1201135, 2585973, 3381657, 3603405, 4309955, 5636095, 12929865, 14653847, 16908285, 43961541, 73269235, 219807705]

約数ペア:

[(1, 219807705), (3, 73269235), (5, 43961541), (13, 16908285), (15, 14653847), (17, 12929865), (39, 5636095), (51, 4309955), (61, 3603405), (65, 3381657), (85, 2585973), (183, 1201135), (195, 1127219), (221, 994605), (255, 861991), (305, 720681), (663, 331535), (793, 277185), (915, 240227), (1037, 211965), (1087, 202215), (1105, 198921), (2379, 92395), (3111, 70655), (3261, 67405), (3315, 66307), (3965, 55437), (5185, 42393), (5435, 40443), (11895, 18479), (13481, 16305), (14131, 15555)]