181071720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:840

約数の個数: 128

約数和(自身を含む): 606528000

約数和(自身を除く): 425456280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 389, 431, 540, 778, 862, 1080, 1167, 1293, 1556, 1724, 1945, 2155, 2334, 2586, 3112, 3448, 3501, 3879, 3890, 4310, 4668, 5172, 5835, 6465, 7002, 7758, 7780, 8620, 9336, 10344, 10503, 11637, 11670, 12930, 14004, 15516, 15560, 17240, 17505, 19395, 21006, 23274, 23340, 25860, 28008, 31032, 35010, 38790, 42012, 46548, 46680, 51720, 52515, 58185, 70020, 77580, 84024, 93096, 105030, 116370, 140040, 155160, 167659, 210060, 232740, 335318, 420120, 465480, 502977, 670636, 838295, 1005954, 1341272, 1508931, 1676590, 2011908, 2514885, 3017862, 3353180, 4023816, 4526793, 5029770, 6035724, 6706360, 7544655, 9053586, 10059540, 12071448, 15089310, 18107172, 20119080, 22633965, 30178620, 36214344, 45267930, 60357240, 90535860, 181071720]

約数ペア:

[(1, 181071720), (2, 90535860), (3, 60357240), (4, 45267930), (5, 36214344), (6, 30178620), (8, 22633965), (9, 20119080), (10, 18107172), (12, 15089310), (15, 12071448), (18, 10059540), (20, 9053586), (24, 7544655), (27, 6706360), (30, 6035724), (36, 5029770), (40, 4526793), (45, 4023816), (54, 3353180), (60, 3017862), (72, 2514885), (90, 2011908), (108, 1676590), (120, 1508931), (135, 1341272), (180, 1005954), (216, 838295), (270, 670636), (360, 502977), (389, 465480), (431, 420120), (540, 335318), (778, 232740), (862, 210060), (1080, 167659), (1167, 155160), (1293, 140040), (1556, 116370), (1724, 105030), (1945, 93096), (2155, 84024), (2334, 77580), (2586, 70020), (3112, 58185), (3448, 52515), (3501, 51720), (3879, 46680), (3890, 46548), (4310, 42012), (4668, 38790), (5172, 35010), (5835, 31032), (6465, 28008), (7002, 25860), (7758, 23340), (7780, 23274), (8620, 21006), (9336, 19395), (10344, 17505), (10503, 17240), (11637, 15560), (11670, 15516), (12930, 14004)]