20876636660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1109}}^1\times {\mathrm{2087}}^1$

素因数の和:3257

約数の個数: 96

約数和(自身を含む): 49060650240

約数和(自身を除く): 28184013580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 220, 410, 451, 820, 902, 1109, 1804, 2087, 2218, 2255, 4174, 4436, 4510, 5545, 8348, 9020, 10435, 11090, 12199, 20870, 22180, 22957, 24398, 41740, 45469, 45914, 48796, 60995, 85567, 90938, 91828, 114785, 121990, 171134, 181876, 227345, 229570, 243980, 342268, 427835, 454690, 459140, 500159, 855670, 909380, 941237, 1000318, 1711340, 1882474, 2000636, 2314483, 2500795, 3764948, 4628966, 4706185, 5001590, 9257932, 9412370, 10003180, 11572415, 18824740, 23144830, 25459313, 46289660, 50918626, 94893803, 101837252, 127296565, 189787606, 254593130, 379575212, 474469015, 509186260, 948938030, 1043831833, 1897876060, 2087663666, 4175327332, 5219159165, 10438318330, 20876636660]

約数ペア:

[(1, 20876636660), (2, 10438318330), (4, 5219159165), (5, 4175327332), (10, 2087663666), (11, 1897876060), (20, 1043831833), (22, 948938030), (41, 509186260), (44, 474469015), (55, 379575212), (82, 254593130), (110, 189787606), (164, 127296565), (205, 101837252), (220, 94893803), (410, 50918626), (451, 46289660), (820, 25459313), (902, 23144830), (1109, 18824740), (1804, 11572415), (2087, 10003180), (2218, 9412370), (2255, 9257932), (4174, 5001590), (4436, 4706185), (4510, 4628966), (5545, 3764948), (8348, 2500795), (9020, 2314483), (10435, 2000636), (11090, 1882474), (12199, 1711340), (20870, 1000318), (22180, 941237), (22957, 909380), (24398, 855670), (41740, 500159), (45469, 459140), (45914, 454690), (48796, 427835), (60995, 342268), (85567, 243980), (90938, 229570), (91828, 227345), (114785, 181876), (121990, 171134)]