18822540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 144

約数和(自身を含む): 61447680

約数和(自身を除く): 42625140

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 19, 20, 22, 30, 33, 38, 44, 55, 57, 60, 66, 76, 79, 95, 110, 114, 132, 158, 165, 190, 209, 220, 228, 237, 285, 316, 330, 361, 380, 395, 418, 474, 570, 627, 660, 722, 790, 836, 869, 948, 1045, 1083, 1140, 1185, 1254, 1444, 1501, 1580, 1738, 1805, 2090, 2166, 2370, 2508, 2607, 3002, 3135, 3476, 3610, 3971, 4180, 4332, 4345, 4503, 4740, 5214, 5415, 6004, 6270, 7220, 7505, 7942, 8690, 9006, 10428, 10830, 11913, 12540, 13035, 15010, 15884, 16511, 17380, 18012, 19855, 21660, 22515, 23826, 26070, 28519, 30020, 33022, 39710, 45030, 47652, 49533, 52140, 57038, 59565, 66044, 79420, 82555, 85557, 90060, 99066, 114076, 119130, 142595, 165110, 171114, 198132, 238260, 247665, 285190, 313709, 330220, 342228, 427785, 495330, 570380, 627418, 855570, 941127, 990660, 1254836, 1568545, 1711140, 1882254, 3137090, 3764508, 4705635, 6274180, 9411270, 18822540]

約数ペア:

[(1, 18822540), (2, 9411270), (3, 6274180), (4, 4705635), (5, 3764508), (6, 3137090), (10, 1882254), (11, 1711140), (12, 1568545), (15, 1254836), (19, 990660), (20, 941127), (22, 855570), (30, 627418), (33, 570380), (38, 495330), (44, 427785), (55, 342228), (57, 330220), (60, 313709), (66, 285190), (76, 247665), (79, 238260), (95, 198132), (110, 171114), (114, 165110), (132, 142595), (158, 119130), (165, 114076), (190, 99066), (209, 90060), (220, 85557), (228, 82555), (237, 79420), (285, 66044), (316, 59565), (330, 57038), (361, 52140), (380, 49533), (395, 47652), (418, 45030), (474, 39710), (570, 33022), (627, 30020), (660, 28519), (722, 26070), (790, 23826), (836, 22515), (869, 21660), (948, 19855), (1045, 18012), (1083, 17380), (1140, 16511), (1185, 15884), (1254, 15010), (1444, 13035), (1501, 12540), (1580, 11913), (1738, 10830), (1805, 10428), (2090, 9006), (2166, 8690), (2370, 7942), (2508, 7505), (2607, 7220), (3002, 6270), (3135, 6004), (3476, 5415), (3610, 5214), (3971, 4740), (4180, 4503), (4332, 4345)]