20340020720

素因数分解:

$2^4\times 5^1\times {\mathrm{461}}^1\times {\mathrm{551519}}^1$

素因数の和:551993

約数の個数: 40

約数和(自身を含む): 47393216640

約数和(自身を除く): 27053195920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 461, 922, 1844, 2305, 3688, 4610, 7376, 9220, 18440, 36880, 551519, 1103038, 2206076, 2757595, 4412152, 5515190, 8824304, 11030380, 22060760, 44121520, 254250259, 508500518, 1017001036, 1271251295, 2034002072, 2542502590, 4068004144, 5085005180, 10170010360, 20340020720]

約数ペア:

[(1, 20340020720), (2, 10170010360), (4, 5085005180), (5, 4068004144), (8, 2542502590), (10, 2034002072), (16, 1271251295), (20, 1017001036), (40, 508500518), (80, 254250259), (461, 44121520), (922, 22060760), (1844, 11030380), (2305, 8824304), (3688, 5515190), (4610, 4412152), (7376, 2757595), (9220, 2206076), (18440, 1103038), (36880, 551519)]