20646540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6037}}^1$

素因数の和:6071

約数の個数: 72

約数和(自身を含む): 65934960

約数和(自身を除く): 45288420

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, 6037, 12074, 18111, 24148, 30185, 36222, 54333, 60370, 72444, 90555, 108666, 114703, 120740, 181110, 217332, 229406, 271665, 344109, 362220, 458812, 543330, 573515, 688218, 1032327, 1086660, 1147030, 1376436, 1720545, 2064654, 2294060, 3441090, 4129308, 5161635, 6882180, 10323270, 20646540]

約数ペア:

[(1, 20646540), (2, 10323270), (3, 6882180), (4, 5161635), (5, 4129308), (6, 3441090), (9, 2294060), (10, 2064654), (12, 1720545), (15, 1376436), (18, 1147030), (19, 1086660), (20, 1032327), (30, 688218), (36, 573515), (38, 543330), (45, 458812), (57, 362220), (60, 344109), (76, 271665), (90, 229406), (95, 217332), (114, 181110), (171, 120740), (180, 114703), (190, 108666), (228, 90555), (285, 72444), (342, 60370), (380, 54333), (570, 36222), (684, 30185), (855, 24148), (1140, 18111), (1710, 12074), (3420, 6037)]