178835220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{52291}}^1$

素因数の和:52325

約数の個数: 72

約数和(自身を含む): 571028640

約数和(自身を除く): 392193420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 52291, 104582, 156873, 209164, 261455, 313746, 470619, 522910, 627492, 784365, 941238, 993529, 1045820, 1568730, 1882476, 1987058, 2353095, 2980587, 3137460, 3974116, 4706190, 4967645, 5961174, 8941761, 9412380, 9935290, 11922348, 14902935, 17883522, 19870580, 29805870, 35767044, 44708805, 59611740, 89417610, 178835220]

約数ペア:

[(1, 178835220), (2, 89417610), (3, 59611740), (4, 44708805), (5, 35767044), (6, 29805870), (9, 19870580), (10, 17883522), (12, 14902935), (15, 11922348), (18, 9935290), (19, 9412380), (20, 8941761), (30, 5961174), (36, 4967645), (38, 4706190), (45, 3974116), (57, 3137460), (60, 2980587), (76, 2353095), (90, 1987058), (95, 1882476), (114, 1568730), (171, 1045820), (180, 993529), (190, 941238), (228, 784365), (285, 627492), (342, 522910), (380, 470619), (570, 313746), (684, 261455), (855, 209164), (1140, 156873), (1710, 104582), (3420, 52291)]