80496540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23537}}^1$

素因数の和:23571

約数の個数: 72

約数和(自身を含む): 257034960

約数和(自身を除く): 176538420

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, 23537, 47074, 70611, 94148, 117685, 141222, 211833, 235370, 282444, 353055, 423666, 447203, 470740, 706110, 847332, 894406, 1059165, 1341609, 1412220, 1788812, 2118330, 2236015, 2683218, 4024827, 4236660, 4472030, 5366436, 6708045, 8049654, 8944060, 13416090, 16099308, 20124135, 26832180, 40248270, 80496540]

約数ペア:

[(1, 80496540), (2, 40248270), (3, 26832180), (4, 20124135), (5, 16099308), (6, 13416090), (9, 8944060), (10, 8049654), (12, 6708045), (15, 5366436), (18, 4472030), (19, 4236660), (20, 4024827), (30, 2683218), (36, 2236015), (38, 2118330), (45, 1788812), (57, 1412220), (60, 1341609), (76, 1059165), (90, 894406), (95, 847332), (114, 706110), (171, 470740), (180, 447203), (190, 423666), (228, 353055), (285, 282444), (342, 235370), (380, 211833), (570, 141222), (684, 117685), (855, 94148), (1140, 70611), (1710, 47074), (3420, 23537)]